Home / 6,291.20-9,436.78-1,674.20

Finding the Fourth Proportional to 6,291.20, 9,436.78 and 1,674.20

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Solution

The fourth proportional to 6,291.20, 9,436.78 and 1,674.20 is: 2,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.20 : 9,436.78 = 1,674.20 : x
  2. Step 2: Convert to fraction form
    6,291.20/9,436.78 = 1,674.20/x
  3. Step 3: Cross multiply
    6,291.20x = 9,436.78 × 1,674.20
  4. Step 4: Simplify right side
    6,291.20x = 15,799,057.08
  5. Step 5: Solve for x
    x = 15,799,057.08/6,291.20
  6. Step 6: Final answer
    x = 2,511.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.