Home / 2,715.49-4,073.61-865.97

Finding the Fourth Proportional to 2,715.49, 4,073.61 and 865.97

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Solution

The fourth proportional to 2,715.49, 4,073.61 and 865.97 is: 1,299.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.49 : 4,073.61 = 865.97 : x
  2. Step 2: Convert to fraction form
    2,715.49/4,073.61 = 865.97/x
  3. Step 3: Cross multiply
    2,715.49x = 4,073.61 × 865.97
  4. Step 4: Simplify right side
    2,715.49x = 3,527,633.48
  5. Step 5: Solve for x
    x = 3,527,633.48/2,715.49
  6. Step 6: Final answer
    x = 1,299.08

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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.