Home / 4,782.38-7,167.29-2,149.74

Finding the Fourth Proportional to 4,782.38, 7,167.29 and 2,149.74

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Solution

The fourth proportional to 4,782.38, 7,167.29 and 2,149.74 is: 3,221.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.38 : 7,167.29 = 2,149.74 : x
  2. Step 2: Convert to fraction form
    4,782.38/7,167.29 = 2,149.74/x
  3. Step 3: Cross multiply
    4,782.38x = 7,167.29 × 2,149.74
  4. Step 4: Simplify right side
    4,782.38x = 15,407,799.26
  5. Step 5: Solve for x
    x = 15,407,799.26/4,782.38
  6. Step 6: Final answer
    x = 3,221.79

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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.