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Finding the Fourth Proportional to 3,060.95, 4,591.26 and 869.39

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Solution

The fourth proportional to 3,060.95, 4,591.26 and 869.39 is: 1,304.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.95 : 4,591.26 = 869.39 : x
  2. Step 2: Convert to fraction form
    3,060.95/4,591.26 = 869.39/x
  3. Step 3: Cross multiply
    3,060.95x = 4,591.26 × 869.39
  4. Step 4: Simplify right side
    3,060.95x = 3,991,572.58
  5. Step 5: Solve for x
    x = 3,991,572.58/3,060.95
  6. Step 6: Final answer
    x = 1,304.03

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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.