Home / 3,854.12-5,318.67-2,175.87

Finding the Fourth Proportional to 3,854.12, 5,318.67 and 2,175.87

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Solution

The fourth proportional to 3,854.12, 5,318.67 and 2,175.87 is: 3,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.12 : 5,318.67 = 2,175.87 : x
  2. Step 2: Convert to fraction form
    3,854.12/5,318.67 = 2,175.87/x
  3. Step 3: Cross multiply
    3,854.12x = 5,318.67 × 2,175.87
  4. Step 4: Simplify right side
    3,854.12x = 11,572,762.60
  5. Step 5: Solve for x
    x = 11,572,762.60/3,854.12
  6. Step 6: Final answer
    x = 3,002.70

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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.