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Finding the Fourth Proportional to 744.37, 1,025.13 and 742.17

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Solution

The fourth proportional to 744.37, 1,025.13 and 742.17 is: 1,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.37 : 1,025.13 = 742.17 : x
  2. Step 2: Convert to fraction form
    744.37/1,025.13 = 742.17/x
  3. Step 3: Cross multiply
    744.37x = 1,025.13 × 742.17
  4. Step 4: Simplify right side
    744.37x = 760,820.73
  5. Step 5: Solve for x
    x = 760,820.73/744.37
  6. Step 6: Final answer
    x = 1,022.10

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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.