Home / 3,747.95-5,618.15-1,281.09

Finding the Fourth Proportional to 3,747.95, 5,618.15 and 1,281.09

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Solution

The fourth proportional to 3,747.95, 5,618.15 and 1,281.09 is: 1,920.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.95 : 5,618.15 = 1,281.09 : x
  2. Step 2: Convert to fraction form
    3,747.95/5,618.15 = 1,281.09/x
  3. Step 3: Cross multiply
    3,747.95x = 5,618.15 × 1,281.09
  4. Step 4: Simplify right side
    3,747.95x = 7,197,355.78
  5. Step 5: Solve for x
    x = 7,197,355.78/3,747.95
  6. Step 6: Final answer
    x = 1,920.34

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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.