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Finding the Fourth Proportional to 5,902.88, 8,854.32 and 2,615.20

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Solution

The fourth proportional to 5,902.88, 8,854.32 and 2,615.20 is: 3,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,902.88 : 8,854.32 = 2,615.20 : x
  2. Step 2: Convert to fraction form
    5,902.88/8,854.32 = 2,615.20/x
  3. Step 3: Cross multiply
    5,902.88x = 8,854.32 × 2,615.20
  4. Step 4: Simplify right side
    5,902.88x = 23,155,817.66
  5. Step 5: Solve for x
    x = 23,155,817.66/5,902.88
  6. Step 6: Final answer
    x = 3,922.80

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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.