Home / 3,918.80-5,913.10-3,766.92

Finding the Fourth Proportional to 3,918.80, 5,913.10 and 3,766.92

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Solution

The fourth proportional to 3,918.80, 5,913.10 and 3,766.92 is: 5,683.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.80 : 5,913.10 = 3,766.92 : x
  2. Step 2: Convert to fraction form
    3,918.80/5,913.10 = 3,766.92/x
  3. Step 3: Cross multiply
    3,918.80x = 5,913.10 × 3,766.92
  4. Step 4: Simplify right side
    3,918.80x = 22,274,174.65
  5. Step 5: Solve for x
    x = 22,274,174.65/3,918.80
  6. Step 6: Final answer
    x = 5,683.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.