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Finding the Fourth Proportional to 1,097.27, 1,514.53 and 677.55

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Solution

The fourth proportional to 1,097.27, 1,514.53 and 677.55 is: 935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097.27 : 1,514.53 = 677.55 : x
  2. Step 2: Convert to fraction form
    1,097.27/1,514.53 = 677.55/x
  3. Step 3: Cross multiply
    1,097.27x = 1,514.53 × 677.55
  4. Step 4: Simplify right side
    1,097.27x = 1,026,169.80
  5. Step 5: Solve for x
    x = 1,026,169.80/1,097.27
  6. Step 6: Final answer
    x = 935.20

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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.