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Finding the Fourth Proportional to 3,742.72, 5,612.25 and 1,550.25

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Solution

The fourth proportional to 3,742.72, 5,612.25 and 1,550.25 is: 2,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.72 : 5,612.25 = 1,550.25 : x
  2. Step 2: Convert to fraction form
    3,742.72/5,612.25 = 1,550.25/x
  3. Step 3: Cross multiply
    3,742.72x = 5,612.25 × 1,550.25
  4. Step 4: Simplify right side
    3,742.72x = 8,700,396.38
  5. Step 5: Solve for x
    x = 8,700,396.38/3,742.72
  6. Step 6: Final answer
    x = 2,324.62

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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.