Home / 3,510.74-4,818.08-3,178.44

Finding the Fourth Proportional to 3,510.74, 4,818.08 and 3,178.44

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Solution

The fourth proportional to 3,510.74, 4,818.08 and 3,178.44 is: 4,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.74 : 4,818.08 = 3,178.44 : x
  2. Step 2: Convert to fraction form
    3,510.74/4,818.08 = 3,178.44/x
  3. Step 3: Cross multiply
    3,510.74x = 4,818.08 × 3,178.44
  4. Step 4: Simplify right side
    3,510.74x = 15,313,986.14
  5. Step 5: Solve for x
    x = 15,313,986.14/3,510.74
  6. Step 6: Final answer
    x = 4,362.04

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Find fourth proportional to 1,755.37, 2,409.04 and 1,589.22
Half scale
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Double scale
Find fourth proportional to 3,511.74, 4,819.45 and 3,179.44
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.