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Finding the Fourth Proportional to 5,402.78, 8,104.17 and 2,800.25

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Solution

The fourth proportional to 5,402.78, 8,104.17 and 2,800.25 is: 4,200.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.78 : 8,104.17 = 2,800.25 : x
  2. Step 2: Convert to fraction form
    5,402.78/8,104.17 = 2,800.25/x
  3. Step 3: Cross multiply
    5,402.78x = 8,104.17 × 2,800.25
  4. Step 4: Simplify right side
    5,402.78x = 22,693,702.04
  5. Step 5: Solve for x
    x = 22,693,702.04/5,402.78
  6. Step 6: Final answer
    x = 4,200.38

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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.