Home / 2,779.64-4,148.02-2,488.04

Finding the Fourth Proportional to 2,779.64, 4,148.02 and 2,488.04

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Solution

The fourth proportional to 2,779.64, 4,148.02 and 2,488.04 is: 3,712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.64 : 4,148.02 = 2,488.04 : x
  2. Step 2: Convert to fraction form
    2,779.64/4,148.02 = 2,488.04/x
  3. Step 3: Cross multiply
    2,779.64x = 4,148.02 × 2,488.04
  4. Step 4: Simplify right side
    2,779.64x = 10,320,439.68
  5. Step 5: Solve for x
    x = 10,320,439.68/2,779.64
  6. Step 6: Final answer
    x = 3,712.87

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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.