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Finding the Fourth Proportional to 924.39, 1,275.67 and 551.58

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Solution

The fourth proportional to 924.39, 1,275.67 and 551.58 is: 761.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.39 : 1,275.67 = 551.58 : x
  2. Step 2: Convert to fraction form
    924.39/1,275.67 = 551.58/x
  3. Step 3: Cross multiply
    924.39x = 1,275.67 × 551.58
  4. Step 4: Simplify right side
    924.39x = 703,631.30
  5. Step 5: Solve for x
    x = 703,631.30/924.39
  6. Step 6: Final answer
    x = 761.19

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1.5x scale

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.