Home / 2,841.28-4,262.10-1,380.04

Finding the Fourth Proportional to 2,841.28, 4,262.10 and 1,380.04

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Solution

The fourth proportional to 2,841.28, 4,262.10 and 1,380.04 is: 2,070.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,841.28 : 4,262.10 = 1,380.04 : x
  2. Step 2: Convert to fraction form
    2,841.28/4,262.10 = 1,380.04/x
  3. Step 3: Cross multiply
    2,841.28x = 4,262.10 × 1,380.04
  4. Step 4: Simplify right side
    2,841.28x = 5,881,868.48
  5. Step 5: Solve for x
    x = 5,881,868.48/2,841.28
  6. Step 6: Final answer
    x = 2,070.15

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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.