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Finding the Fourth Proportional to 924.27, 1,275.11 and 551.16

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Solution

The fourth proportional to 924.27, 1,275.11 and 551.16 is: 760.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.27 : 1,275.11 = 551.16 : x
  2. Step 2: Convert to fraction form
    924.27/1,275.11 = 551.16/x
  3. Step 3: Cross multiply
    924.27x = 1,275.11 × 551.16
  4. Step 4: Simplify right side
    924.27x = 702,786.87
  5. Step 5: Solve for x
    x = 702,786.87/924.27
  6. Step 6: Final answer
    x = 760.37

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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.