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Finding the Fourth Proportional to 739.17, 1,102.23 and 637.11

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Solution

The fourth proportional to 739.17, 1,102.23 and 637.11 is: 950.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.17 : 1,102.23 = 637.11 : x
  2. Step 2: Convert to fraction form
    739.17/1,102.23 = 637.11/x
  3. Step 3: Cross multiply
    739.17x = 1,102.23 × 637.11
  4. Step 4: Simplify right side
    739.17x = 702,241.76
  5. Step 5: Solve for x
    x = 702,241.76/739.17
  6. Step 6: Final answer
    x = 950.04

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.