Home / 3,868.57-5,336.67-2,449.90

Finding the Fourth Proportional to 3,868.57, 5,336.67 and 2,449.90

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Solution

The fourth proportional to 3,868.57, 5,336.67 and 2,449.90 is: 3,379.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.57 : 5,336.67 = 2,449.90 : x
  2. Step 2: Convert to fraction form
    3,868.57/5,336.67 = 2,449.90/x
  3. Step 3: Cross multiply
    3,868.57x = 5,336.67 × 2,449.90
  4. Step 4: Simplify right side
    3,868.57x = 13,074,307.83
  5. Step 5: Solve for x
    x = 13,074,307.83/3,868.57
  6. Step 6: Final answer
    x = 3,379.62

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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.