Home / 2,809.60-4,215.36-2,488.96

Finding the Fourth Proportional to 2,809.60, 4,215.36 and 2,488.96

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Solution

The fourth proportional to 2,809.60, 4,215.36 and 2,488.96 is: 3,734.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.60 : 4,215.36 = 2,488.96 : x
  2. Step 2: Convert to fraction form
    2,809.60/4,215.36 = 2,488.96/x
  3. Step 3: Cross multiply
    2,809.60x = 4,215.36 × 2,488.96
  4. Step 4: Simplify right side
    2,809.60x = 10,491,862.43
  5. Step 5: Solve for x
    x = 10,491,862.43/2,809.60
  6. Step 6: Final answer
    x = 3,734.29

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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.