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Finding the Fourth Proportional to 4,279.92, 5,906.10 and 2,391.48

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Solution

The fourth proportional to 4,279.92, 5,906.10 and 2,391.48 is: 3,300.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.92 : 5,906.10 = 2,391.48 : x
  2. Step 2: Convert to fraction form
    4,279.92/5,906.10 = 2,391.48/x
  3. Step 3: Cross multiply
    4,279.92x = 5,906.10 × 2,391.48
  4. Step 4: Simplify right side
    4,279.92x = 14,124,320.03
  5. Step 5: Solve for x
    x = 14,124,320.03/4,279.92
  6. Step 6: Final answer
    x = 3,300.14

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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.