Home / 10,652.64-15,979.92-2,861.28

Finding the Fourth Proportional to 10,652.64, 15,979.92 and 2,861.28

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Solution

The fourth proportional to 10,652.64, 15,979.92 and 2,861.28 is: 4,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,652.64 : 15,979.92 = 2,861.28 : x
  2. Step 2: Convert to fraction form
    10,652.64/15,979.92 = 2,861.28/x
  3. Step 3: Cross multiply
    10,652.64x = 15,979.92 × 2,861.28
  4. Step 4: Simplify right side
    10,652.64x = 45,723,025.50
  5. Step 5: Solve for x
    x = 45,723,025.50/10,652.64
  6. Step 6: Final answer
    x = 4,292.18

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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.