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Finding the Fourth Proportional to 1,712.01, 2,569.17 and 738.21

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Solution

The fourth proportional to 1,712.01, 2,569.17 and 738.21 is: 1,107.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.01 : 2,569.17 = 738.21 : x
  2. Step 2: Convert to fraction form
    1,712.01/2,569.17 = 738.21/x
  3. Step 3: Cross multiply
    1,712.01x = 2,569.17 × 738.21
  4. Step 4: Simplify right side
    1,712.01x = 1,896,586.99
  5. Step 5: Solve for x
    x = 1,896,586.99/1,712.01
  6. Step 6: Final answer
    x = 1,107.81

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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.