Home / 3,716.72-5,128.23-2,521.87

Finding the Fourth Proportional to 3,716.72, 5,128.23 and 2,521.87

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Solution

The fourth proportional to 3,716.72, 5,128.23 and 2,521.87 is: 3,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.72 : 5,128.23 = 2,521.87 : x
  2. Step 2: Convert to fraction form
    3,716.72/5,128.23 = 2,521.87/x
  3. Step 3: Cross multiply
    3,716.72x = 5,128.23 × 2,521.87
  4. Step 4: Simplify right side
    3,716.72x = 12,932,691.14
  5. Step 5: Solve for x
    x = 12,932,691.14/3,716.72
  6. Step 6: Final answer
    x = 3,479.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.