Home / 3,959.20-5,463.81-2,190.97

Finding the Fourth Proportional to 3,959.20, 5,463.81 and 2,190.97

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Solution

The fourth proportional to 3,959.20, 5,463.81 and 2,190.97 is: 3,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.20 : 5,463.81 = 2,190.97 : x
  2. Step 2: Convert to fraction form
    3,959.20/5,463.81 = 2,190.97/x
  3. Step 3: Cross multiply
    3,959.20x = 5,463.81 × 2,190.97
  4. Step 4: Simplify right side
    3,959.20x = 11,971,005.52
  5. Step 5: Solve for x
    x = 11,971,005.52/3,959.20
  6. Step 6: Final answer
    x = 3,023.60

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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.