Home / 2,979.28-4,468.02-1,247.52

Finding the Fourth Proportional to 2,979.28, 4,468.02 and 1,247.52

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Solution

The fourth proportional to 2,979.28, 4,468.02 and 1,247.52 is: 1,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.28 : 4,468.02 = 1,247.52 : x
  2. Step 2: Convert to fraction form
    2,979.28/4,468.02 = 1,247.52/x
  3. Step 3: Cross multiply
    2,979.28x = 4,468.02 × 1,247.52
  4. Step 4: Simplify right side
    2,979.28x = 5,573,944.31
  5. Step 5: Solve for x
    x = 5,573,944.31/2,979.28
  6. Step 6: Final answer
    x = 1,870.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.