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Finding the Fourth Proportional to 2,516.84, 3,472.97 and 1,397.62

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Solution

The fourth proportional to 2,516.84, 3,472.97 and 1,397.62 is: 1,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.84 : 3,472.97 = 1,397.62 : x
  2. Step 2: Convert to fraction form
    2,516.84/3,472.97 = 1,397.62/x
  3. Step 3: Cross multiply
    2,516.84x = 3,472.97 × 1,397.62
  4. Step 4: Simplify right side
    2,516.84x = 4,853,892.33
  5. Step 5: Solve for x
    x = 4,853,892.33/2,516.84
  6. Step 6: Final answer
    x = 1,928.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.