Home / 3,819.18-5,725.10-2,428.20

Finding the Fourth Proportional to 3,819.18, 5,725.10 and 2,428.20

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Solution

The fourth proportional to 3,819.18, 5,725.10 and 2,428.20 is: 3,639.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.18 : 5,725.10 = 2,428.20 : x
  2. Step 2: Convert to fraction form
    3,819.18/5,725.10 = 2,428.20/x
  3. Step 3: Cross multiply
    3,819.18x = 5,725.10 × 2,428.20
  4. Step 4: Simplify right side
    3,819.18x = 13,901,687.82
  5. Step 5: Solve for x
    x = 13,901,687.82/3,819.18
  6. Step 6: Final answer
    x = 3,639.97

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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.