Home / 2,319.42-3,481.20-1,661.88

Finding the Fourth Proportional to 2,319.42, 3,481.20 and 1,661.88

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Solution

The fourth proportional to 2,319.42, 3,481.20 and 1,661.88 is: 2,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.42 : 3,481.20 = 1,661.88 : x
  2. Step 2: Convert to fraction form
    2,319.42/3,481.20 = 1,661.88/x
  3. Step 3: Cross multiply
    2,319.42x = 3,481.20 × 1,661.88
  4. Step 4: Simplify right side
    2,319.42x = 5,785,336.66
  5. Step 5: Solve for x
    x = 5,785,336.66/2,319.42
  6. Step 6: Final answer
    x = 2,494.30

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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.