Home / 4,001.20-5,998.15-1,402.72

Finding the Fourth Proportional to 4,001.20, 5,998.15 and 1,402.72

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Solution

The fourth proportional to 4,001.20, 5,998.15 and 1,402.72 is: 2,102.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001.20 : 5,998.15 = 1,402.72 : x
  2. Step 2: Convert to fraction form
    4,001.20/5,998.15 = 1,402.72/x
  3. Step 3: Cross multiply
    4,001.20x = 5,998.15 × 1,402.72
  4. Step 4: Simplify right side
    4,001.20x = 8,413,711.73
  5. Step 5: Solve for x
    x = 8,413,711.73/4,001.20
  6. Step 6: Final answer
    x = 2,102.80

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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.