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Finding the Fourth Proportional to 1,068.27, 1,474.25 and 675.42

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Solution

The fourth proportional to 1,068.27, 1,474.25 and 675.42 is: 932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.27 : 1,474.25 = 675.42 : x
  2. Step 2: Convert to fraction form
    1,068.27/1,474.25 = 675.42/x
  3. Step 3: Cross multiply
    1,068.27x = 1,474.25 × 675.42
  4. Step 4: Simplify right side
    1,068.27x = 995,734.56
  5. Step 5: Solve for x
    x = 995,734.56/1,068.27
  6. Step 6: Final answer
    x = 932.10

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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.