Home / 2,545.39-3,819.52-1,988.54

Finding the Fourth Proportional to 2,545.39, 3,819.52 and 1,988.54

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Solution

The fourth proportional to 2,545.39, 3,819.52 and 1,988.54 is: 2,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.39 : 3,819.52 = 1,988.54 : x
  2. Step 2: Convert to fraction form
    2,545.39/3,819.52 = 1,988.54/x
  3. Step 3: Cross multiply
    2,545.39x = 3,819.52 × 1,988.54
  4. Step 4: Simplify right side
    2,545.39x = 7,595,245.42
  5. Step 5: Solve for x
    x = 7,595,245.42/2,545.39
  6. Step 6: Final answer
    x = 2,983.92

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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.