Home / 4,279.92-5,905.60-2,391.18

Finding the Fourth Proportional to 4,279.92, 5,905.60 and 2,391.18

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Solution

The fourth proportional to 4,279.92, 5,905.60 and 2,391.18 is: 3,299.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.92 : 5,905.60 = 2,391.18 : x
  2. Step 2: Convert to fraction form
    4,279.92/5,905.60 = 2,391.18/x
  3. Step 3: Cross multiply
    4,279.92x = 5,905.60 × 2,391.18
  4. Step 4: Simplify right side
    4,279.92x = 14,121,352.61
  5. Step 5: Solve for x
    x = 14,121,352.61/4,279.92
  6. Step 6: Final answer
    x = 3,299.44

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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.