Home / 3,959.08-5,463.68-2,190.86

Finding the Fourth Proportional to 3,959.08, 5,463.68 and 2,190.86

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Solution

The fourth proportional to 3,959.08, 5,463.68 and 2,190.86 is: 3,023.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.08 : 5,463.68 = 2,190.86 : x
  2. Step 2: Convert to fraction form
    3,959.08/5,463.68 = 2,190.86/x
  3. Step 3: Cross multiply
    3,959.08x = 5,463.68 × 2,190.86
  4. Step 4: Simplify right side
    3,959.08x = 11,970,157.96
  5. Step 5: Solve for x
    x = 11,970,157.96/3,959.08
  6. Step 6: Final answer
    x = 3,023.47

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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.