Home / 3,151.28-4,350.30-1,974.08

Finding the Fourth Proportional to 3,151.28, 4,350.30 and 1,974.08

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Solution

The fourth proportional to 3,151.28, 4,350.30 and 1,974.08 is: 2,725.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.28 : 4,350.30 = 1,974.08 : x
  2. Step 2: Convert to fraction form
    3,151.28/4,350.30 = 1,974.08/x
  3. Step 3: Cross multiply
    3,151.28x = 4,350.30 × 1,974.08
  4. Step 4: Simplify right side
    3,151.28x = 8,587,840.22
  5. Step 5: Solve for x
    x = 8,587,840.22/3,151.28
  6. Step 6: Final answer
    x = 2,725.19

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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.