Home / 3,251.12-4,869.38-3,141.76

Finding the Fourth Proportional to 3,251.12, 4,869.38 and 3,141.76

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Solution

The fourth proportional to 3,251.12, 4,869.38 and 3,141.76 is: 4,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.12 : 4,869.38 = 3,141.76 : x
  2. Step 2: Convert to fraction form
    3,251.12/4,869.38 = 3,141.76/x
  3. Step 3: Cross multiply
    3,251.12x = 4,869.38 × 3,141.76
  4. Step 4: Simplify right side
    3,251.12x = 15,298,423.31
  5. Step 5: Solve for x
    x = 15,298,423.31/3,251.12
  6. Step 6: Final answer
    x = 4,705.59

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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.