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Finding the Fourth Proportional to 4,474.80, 6,711.12 and 1,877.04

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Solution

The fourth proportional to 4,474.80, 6,711.12 and 1,877.04 is: 2,815.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,474.80 : 6,711.12 = 1,877.04 : x
  2. Step 2: Convert to fraction form
    4,474.80/6,711.12 = 1,877.04/x
  3. Step 3: Cross multiply
    4,474.80x = 6,711.12 × 1,877.04
  4. Step 4: Simplify right side
    4,474.80x = 12,597,040.68
  5. Step 5: Solve for x
    x = 12,597,040.68/4,474.80
  6. Step 6: Final answer
    x = 2,815.11

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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.