Home / 5,778.38-7,974.16-3,683.72

Finding the Fourth Proportional to 5,778.38, 7,974.16 and 3,683.72

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Solution

The fourth proportional to 5,778.38, 7,974.16 and 3,683.72 is: 5,083.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.38 : 7,974.16 = 3,683.72 : x
  2. Step 2: Convert to fraction form
    5,778.38/7,974.16 = 3,683.72/x
  3. Step 3: Cross multiply
    5,778.38x = 7,974.16 × 3,683.72
  4. Step 4: Simplify right side
    5,778.38x = 29,374,572.68
  5. Step 5: Solve for x
    x = 29,374,572.68/5,778.38
  6. Step 6: Final answer
    x = 5,083.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.