Home / 2,008.80-3,013.68-1,432.80

Finding the Fourth Proportional to 2,008.80, 3,013.68 and 1,432.80

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Solution

The fourth proportional to 2,008.80, 3,013.68 and 1,432.80 is: 2,149.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.80 : 3,013.68 = 1,432.80 : x
  2. Step 2: Convert to fraction form
    2,008.80/3,013.68 = 1,432.80/x
  3. Step 3: Cross multiply
    2,008.80x = 3,013.68 × 1,432.80
  4. Step 4: Simplify right side
    2,008.80x = 4,318,000.70
  5. Step 5: Solve for x
    x = 4,318,000.70/2,008.80
  6. Step 6: Final answer
    x = 2,149.54

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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.