Home / 4,521.78-6,781.29-2,672.39

Finding the Fourth Proportional to 4,521.78, 6,781.29 and 2,672.39

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Solution

The fourth proportional to 4,521.78, 6,781.29 and 2,672.39 is: 4,007.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,521.78 : 6,781.29 = 2,672.39 : x
  2. Step 2: Convert to fraction form
    4,521.78/6,781.29 = 2,672.39/x
  3. Step 3: Cross multiply
    4,521.78x = 6,781.29 × 2,672.39
  4. Step 4: Simplify right side
    4,521.78x = 18,122,217.68
  5. Step 5: Solve for x
    x = 18,122,217.68/4,521.78
  6. Step 6: Final answer
    x = 4,007.76

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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.