Home / 3,868.36-5,337.88-2,166.96

Finding the Fourth Proportional to 3,868.36, 5,337.88 and 2,166.96

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Solution

The fourth proportional to 3,868.36, 5,337.88 and 2,166.96 is: 2,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.36 : 5,337.88 = 2,166.96 : x
  2. Step 2: Convert to fraction form
    3,868.36/5,337.88 = 2,166.96/x
  3. Step 3: Cross multiply
    3,868.36x = 5,337.88 × 2,166.96
  4. Step 4: Simplify right side
    3,868.36x = 11,566,972.44
  5. Step 5: Solve for x
    x = 11,566,972.44/3,868.36
  6. Step 6: Final answer
    x = 2,990.15

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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.