Home / 2,281.12-3,425.08-2,169.76

Finding the Fourth Proportional to 2,281.12, 3,425.08 and 2,169.76

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Solution

The fourth proportional to 2,281.12, 3,425.08 and 2,169.76 is: 3,257.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.12 : 3,425.08 = 2,169.76 : x
  2. Step 2: Convert to fraction form
    2,281.12/3,425.08 = 2,169.76/x
  3. Step 3: Cross multiply
    2,281.12x = 3,425.08 × 2,169.76
  4. Step 4: Simplify right side
    2,281.12x = 7,431,601.58
  5. Step 5: Solve for x
    x = 7,431,601.58/2,281.12
  6. Step 6: Final answer
    x = 3,257.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.