Home / 1,715.29-2,572.17-674.49

Finding the Fourth Proportional to 1,715.29, 2,572.17 and 674.49

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Solution

The fourth proportional to 1,715.29, 2,572.17 and 674.49 is: 1,011.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.29 : 2,572.17 = 674.49 : x
  2. Step 2: Convert to fraction form
    1,715.29/2,572.17 = 674.49/x
  3. Step 3: Cross multiply
    1,715.29x = 2,572.17 × 674.49
  4. Step 4: Simplify right side
    1,715.29x = 1,734,913.85
  5. Step 5: Solve for x
    x = 1,734,913.85/1,715.29
  6. Step 6: Final answer
    x = 1,011.44

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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.