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Finding the Fourth Proportional to 3,060.96, 4,591.44 and 869.88

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Solution

The fourth proportional to 3,060.96, 4,591.44 and 869.88 is: 1,304.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.96 : 4,591.44 = 869.88 : x
  2. Step 2: Convert to fraction form
    3,060.96/4,591.44 = 869.88/x
  3. Step 3: Cross multiply
    3,060.96x = 4,591.44 × 869.88
  4. Step 4: Simplify right side
    3,060.96x = 3,994,001.83
  5. Step 5: Solve for x
    x = 3,994,001.83/3,060.96
  6. Step 6: Final answer
    x = 1,304.82

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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.