Home / 2,169.60-3,252.48-1,959.68

Finding the Fourth Proportional to 2,169.60, 3,252.48 and 1,959.68

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Solution

The fourth proportional to 2,169.60, 3,252.48 and 1,959.68 is: 2,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.60 : 3,252.48 = 1,959.68 : x
  2. Step 2: Convert to fraction form
    2,169.60/3,252.48 = 1,959.68/x
  3. Step 3: Cross multiply
    2,169.60x = 3,252.48 × 1,959.68
  4. Step 4: Simplify right side
    2,169.60x = 6,373,820.01
  5. Step 5: Solve for x
    x = 6,373,820.01/2,169.60
  6. Step 6: Final answer
    x = 2,937.79

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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.