Home / 2,691.20-4,007.02-2,530.88

Finding the Fourth Proportional to 2,691.20, 4,007.02 and 2,530.88

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Solution

The fourth proportional to 2,691.20, 4,007.02 and 2,530.88 is: 3,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.20 : 4,007.02 = 2,530.88 : x
  2. Step 2: Convert to fraction form
    2,691.20/4,007.02 = 2,530.88/x
  3. Step 3: Cross multiply
    2,691.20x = 4,007.02 × 2,530.88
  4. Step 4: Simplify right side
    2,691.20x = 10,141,286.78
  5. Step 5: Solve for x
    x = 10,141,286.78/2,691.20
  6. Step 6: Final answer
    x = 3,768.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.