Home / 2,612.60-3,909.30-2,382.20

Finding the Fourth Proportional to 2,612.60, 3,909.30 and 2,382.20

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Solution

The fourth proportional to 2,612.60, 3,909.30 and 2,382.20 is: 3,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.60 : 3,909.30 = 2,382.20 : x
  2. Step 2: Convert to fraction form
    2,612.60/3,909.30 = 2,382.20/x
  3. Step 3: Cross multiply
    2,612.60x = 3,909.30 × 2,382.20
  4. Step 4: Simplify right side
    2,612.60x = 9,312,734.46
  5. Step 5: Solve for x
    x = 9,312,734.46/2,612.60
  6. Step 6: Final answer
    x = 3,564.55

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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.