Home / 3,898.40-5,375.66-3,184.92

Finding the Fourth Proportional to 3,898.40, 5,375.66 and 3,184.92

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Solution

The fourth proportional to 3,898.40, 5,375.66 and 3,184.92 is: 4,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.40 : 5,375.66 = 3,184.92 : x
  2. Step 2: Convert to fraction form
    3,898.40/5,375.66 = 3,184.92/x
  3. Step 3: Cross multiply
    3,898.40x = 5,375.66 × 3,184.92
  4. Step 4: Simplify right side
    3,898.40x = 17,121,031.12
  5. Step 5: Solve for x
    x = 17,121,031.12/3,898.40
  6. Step 6: Final answer
    x = 4,391.82

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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.