Home / 4,039.92-5,573.12-2,861.60

Finding the Fourth Proportional to 4,039.92, 5,573.12 and 2,861.60

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Solution

The fourth proportional to 4,039.92, 5,573.12 and 2,861.60 is: 3,947.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,039.92 : 5,573.12 = 2,861.60 : x
  2. Step 2: Convert to fraction form
    4,039.92/5,573.12 = 2,861.60/x
  3. Step 3: Cross multiply
    4,039.92x = 5,573.12 × 2,861.60
  4. Step 4: Simplify right side
    4,039.92x = 15,948,040.19
  5. Step 5: Solve for x
    x = 15,948,040.19/4,039.92
  6. Step 6: Final answer
    x = 3,947.61

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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.