Home / 3,948.74-5,921.84-2,098.80

Finding the Fourth Proportional to 3,948.74, 5,921.84 and 2,098.80

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Solution

The fourth proportional to 3,948.74, 5,921.84 and 2,098.80 is: 3,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.74 : 5,921.84 = 2,098.80 : x
  2. Step 2: Convert to fraction form
    3,948.74/5,921.84 = 2,098.80/x
  3. Step 3: Cross multiply
    3,948.74x = 5,921.84 × 2,098.80
  4. Step 4: Simplify right side
    3,948.74x = 12,428,747.30
  5. Step 5: Solve for x
    x = 12,428,747.30/3,948.74
  6. Step 6: Final answer
    x = 3,147.52

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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.