Home / 5,121.70-7,682.65-2,001.58

Finding the Fourth Proportional to 5,121.70, 7,682.65 and 2,001.58

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Solution

The fourth proportional to 5,121.70, 7,682.65 and 2,001.58 is: 3,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.70 : 7,682.65 = 2,001.58 : x
  2. Step 2: Convert to fraction form
    5,121.70/7,682.65 = 2,001.58/x
  3. Step 3: Cross multiply
    5,121.70x = 7,682.65 × 2,001.58
  4. Step 4: Simplify right side
    5,121.70x = 15,377,414.38
  5. Step 5: Solve for x
    x = 15,377,414.38/5,121.70
  6. Step 6: Final answer
    x = 3,002.41

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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.