Home / 3,948.17-5,448.45-2,179.76

Finding the Fourth Proportional to 3,948.17, 5,448.45 and 2,179.76

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Solution

The fourth proportional to 3,948.17, 5,448.45 and 2,179.76 is: 3,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.17 : 5,448.45 = 2,179.76 : x
  2. Step 2: Convert to fraction form
    3,948.17/5,448.45 = 2,179.76/x
  3. Step 3: Cross multiply
    3,948.17x = 5,448.45 × 2,179.76
  4. Step 4: Simplify right side
    3,948.17x = 11,876,294.30
  5. Step 5: Solve for x
    x = 11,876,294.30/3,948.17
  6. Step 6: Final answer
    x = 3,008.05

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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.