Home / 4,279.79-5,905.76-2,391.23

Finding the Fourth Proportional to 4,279.79, 5,905.76 and 2,391.23

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Solution

The fourth proportional to 4,279.79, 5,905.76 and 2,391.23 is: 3,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.79 : 5,905.76 = 2,391.23 : x
  2. Step 2: Convert to fraction form
    4,279.79/5,905.76 = 2,391.23/x
  3. Step 3: Cross multiply
    4,279.79x = 5,905.76 × 2,391.23
  4. Step 4: Simplify right side
    4,279.79x = 14,121,989.00
  5. Step 5: Solve for x
    x = 14,121,989.00/4,279.79
  6. Step 6: Final answer
    x = 3,299.70

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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.