Home / 2,458.20-3,387.78-2,037.28

Finding the Fourth Proportional to 2,458.20, 3,387.78 and 2,037.28

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Solution

The fourth proportional to 2,458.20, 3,387.78 and 2,037.28 is: 2,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.20 : 3,387.78 = 2,037.28 : x
  2. Step 2: Convert to fraction form
    2,458.20/3,387.78 = 2,037.28/x
  3. Step 3: Cross multiply
    2,458.20x = 3,387.78 × 2,037.28
  4. Step 4: Simplify right side
    2,458.20x = 6,901,856.44
  5. Step 5: Solve for x
    x = 6,901,856.44/2,458.20
  6. Step 6: Final answer
    x = 2,807.69

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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.