Home / 2,179.20-3,264.48-1,356.96

Finding the Fourth Proportional to 2,179.20, 3,264.48 and 1,356.96

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Solution

The fourth proportional to 2,179.20, 3,264.48 and 1,356.96 is: 2,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.20 : 3,264.48 = 1,356.96 : x
  2. Step 2: Convert to fraction form
    2,179.20/3,264.48 = 1,356.96/x
  3. Step 3: Cross multiply
    2,179.20x = 3,264.48 × 1,356.96
  4. Step 4: Simplify right side
    2,179.20x = 4,429,768.78
  5. Step 5: Solve for x
    x = 4,429,768.78/2,179.20
  6. Step 6: Final answer
    x = 2,032.75

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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.