Home / 5,674.10-8,511.15-1,778.81

Finding the Fourth Proportional to 5,674.10, 8,511.15 and 1,778.81

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Solution

The fourth proportional to 5,674.10, 8,511.15 and 1,778.81 is: 2,668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.10 : 8,511.15 = 1,778.81 : x
  2. Step 2: Convert to fraction form
    5,674.10/8,511.15 = 1,778.81/x
  3. Step 3: Cross multiply
    5,674.10x = 8,511.15 × 1,778.81
  4. Step 4: Simplify right side
    5,674.10x = 15,139,718.73
  5. Step 5: Solve for x
    x = 15,139,718.73/5,674.10
  6. Step 6: Final answer
    x = 2,668.22

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Double scale
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Similar ratio
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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.