Home / 3,139.30-4,332.18-1,742.02

Finding the Fourth Proportional to 3,139.30, 4,332.18 and 1,742.02

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Solution

The fourth proportional to 3,139.30, 4,332.18 and 1,742.02 is: 2,403.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.30 : 4,332.18 = 1,742.02 : x
  2. Step 2: Convert to fraction form
    3,139.30/4,332.18 = 1,742.02/x
  3. Step 3: Cross multiply
    3,139.30x = 4,332.18 × 1,742.02
  4. Step 4: Simplify right side
    3,139.30x = 7,546,744.20
  5. Step 5: Solve for x
    x = 7,546,744.20/3,139.30
  6. Step 6: Final answer
    x = 2,403.96

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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.