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Finding the Fourth Proportional to 2,179.52, 3,272.16 and 1,695.68

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Solution

The fourth proportional to 2,179.52, 3,272.16 and 1,695.68 is: 2,545.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.52 : 3,272.16 = 1,695.68 : x
  2. Step 2: Convert to fraction form
    2,179.52/3,272.16 = 1,695.68/x
  3. Step 3: Cross multiply
    2,179.52x = 3,272.16 × 1,695.68
  4. Step 4: Simplify right side
    2,179.52x = 5,548,536.27
  5. Step 5: Solve for x
    x = 5,548,536.27/2,179.52
  6. Step 6: Final answer
    x = 2,545.76

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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.