Home / 3,163.89-4,359.11-2,869.05

Finding the Fourth Proportional to 3,163.89, 4,359.11 and 2,869.05

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Solution

The fourth proportional to 3,163.89, 4,359.11 and 2,869.05 is: 3,952.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.89 : 4,359.11 = 2,869.05 : x
  2. Step 2: Convert to fraction form
    3,163.89/4,359.11 = 2,869.05/x
  3. Step 3: Cross multiply
    3,163.89x = 4,359.11 × 2,869.05
  4. Step 4: Simplify right side
    3,163.89x = 12,506,490.20
  5. Step 5: Solve for x
    x = 12,506,490.20/3,163.89
  6. Step 6: Final answer
    x = 3,952.88

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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.