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Finding the Fourth Proportional to 5,702.72, 8,554.08 and 3,942.18

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Solution

The fourth proportional to 5,702.72, 8,554.08 and 3,942.18 is: 5,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,702.72 : 8,554.08 = 3,942.18 : x
  2. Step 2: Convert to fraction form
    5,702.72/8,554.08 = 3,942.18/x
  3. Step 3: Cross multiply
    5,702.72x = 8,554.08 × 3,942.18
  4. Step 4: Simplify right side
    5,702.72x = 33,721,723.09
  5. Step 5: Solve for x
    x = 33,721,723.09/5,702.72
  6. Step 6: Final answer
    x = 5,913.28

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.