Home / 2,171.12-3,256.68-527.66

Finding the Fourth Proportional to 2,171.12, 3,256.68 and 527.66

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Solution

The fourth proportional to 2,171.12, 3,256.68 and 527.66 is: 791.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.12 : 3,256.68 = 527.66 : x
  2. Step 2: Convert to fraction form
    2,171.12/3,256.68 = 527.66/x
  3. Step 3: Cross multiply
    2,171.12x = 3,256.68 × 527.66
  4. Step 4: Simplify right side
    2,171.12x = 1,718,403.49
  5. Step 5: Solve for x
    x = 1,718,403.49/2,171.12
  6. Step 6: Final answer
    x = 791.48

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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.