Home / 3,854.70-5,317.76-2,281.88

Finding the Fourth Proportional to 3,854.70, 5,317.76 and 2,281.88

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Solution

The fourth proportional to 3,854.70, 5,317.76 and 2,281.88 is: 3,147.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.70 : 5,317.76 = 2,281.88 : x
  2. Step 2: Convert to fraction form
    3,854.70/5,317.76 = 2,281.88/x
  3. Step 3: Cross multiply
    3,854.70x = 5,317.76 × 2,281.88
  4. Step 4: Simplify right side
    3,854.70x = 12,134,452.19
  5. Step 5: Solve for x
    x = 12,134,452.19/3,854.70
  6. Step 6: Final answer
    x = 3,147.96

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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.