Home / 3,854.20-5,318.04-2,282.80

Finding the Fourth Proportional to 3,854.20, 5,318.04 and 2,282.80

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Solution

The fourth proportional to 3,854.20, 5,318.04 and 2,282.80 is: 3,149.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.20 : 5,318.04 = 2,282.80 : x
  2. Step 2: Convert to fraction form
    3,854.20/5,318.04 = 2,282.80/x
  3. Step 3: Cross multiply
    3,854.20x = 5,318.04 × 2,282.80
  4. Step 4: Simplify right side
    3,854.20x = 12,140,021.71
  5. Step 5: Solve for x
    x = 12,140,021.71/3,854.20
  6. Step 6: Final answer
    x = 3,149.82

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1.5x scale

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.