Home / 3,959.47-5,463.87-2,191.19

Finding the Fourth Proportional to 3,959.47, 5,463.87 and 2,191.19

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Solution

The fourth proportional to 3,959.47, 5,463.87 and 2,191.19 is: 3,023.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.47 : 5,463.87 = 2,191.19 : x
  2. Step 2: Convert to fraction form
    3,959.47/5,463.87 = 2,191.19/x
  3. Step 3: Cross multiply
    3,959.47x = 5,463.87 × 2,191.19
  4. Step 4: Simplify right side
    3,959.47x = 11,972,377.31
  5. Step 5: Solve for x
    x = 11,972,377.31/3,959.47
  6. Step 6: Final answer
    x = 3,023.73

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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.