Home / 3,251.12-4,872.54-1,515.92

Finding the Fourth Proportional to 3,251.12, 4,872.54 and 1,515.92

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Solution

The fourth proportional to 3,251.12, 4,872.54 and 1,515.92 is: 2,271.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.12 : 4,872.54 = 1,515.92 : x
  2. Step 2: Convert to fraction form
    3,251.12/4,872.54 = 1,515.92/x
  3. Step 3: Cross multiply
    3,251.12x = 4,872.54 × 1,515.92
  4. Step 4: Simplify right side
    3,251.12x = 7,386,380.84
  5. Step 5: Solve for x
    x = 7,386,380.84/3,251.12
  6. Step 6: Final answer
    x = 2,271.95

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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.