Home / 4,987.83-6,882.24-3,123.75

Finding the Fourth Proportional to 4,987.83, 6,882.24 and 3,123.75

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Solution

The fourth proportional to 4,987.83, 6,882.24 and 3,123.75 is: 4,310.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.83 : 6,882.24 = 3,123.75 : x
  2. Step 2: Convert to fraction form
    4,987.83/6,882.24 = 3,123.75/x
  3. Step 3: Cross multiply
    4,987.83x = 6,882.24 × 3,123.75
  4. Step 4: Simplify right side
    4,987.83x = 21,498,397.20
  5. Step 5: Solve for x
    x = 21,498,397.20/4,987.83
  6. Step 6: Final answer
    x = 4,310.17

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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.