Home / 3,959.20-5,463.68-2,190.77

Finding the Fourth Proportional to 3,959.20, 5,463.68 and 2,190.77

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Solution

The fourth proportional to 3,959.20, 5,463.68 and 2,190.77 is: 3,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.20 : 5,463.68 = 2,190.77 : x
  2. Step 2: Convert to fraction form
    3,959.20/5,463.68 = 2,190.77/x
  3. Step 3: Cross multiply
    3,959.20x = 5,463.68 × 2,190.77
  4. Step 4: Simplify right side
    3,959.20x = 11,969,666.23
  5. Step 5: Solve for x
    x = 11,969,666.23/3,959.20
  6. Step 6: Final answer
    x = 3,023.25

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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.