Home / 2,440.20-3,659.33-879.66

Finding the Fourth Proportional to 2,440.20, 3,659.33 and 879.66

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Solution

The fourth proportional to 2,440.20, 3,659.33 and 879.66 is: 1,319.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,440.20 : 3,659.33 = 879.66 : x
  2. Step 2: Convert to fraction form
    2,440.20/3,659.33 = 879.66/x
  3. Step 3: Cross multiply
    2,440.20x = 3,659.33 × 879.66
  4. Step 4: Simplify right side
    2,440.20x = 3,218,963.48
  5. Step 5: Solve for x
    x = 3,218,963.48/2,440.20
  6. Step 6: Final answer
    x = 1,319.14

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1.5x scale

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.