Home / 3,651.52-5,040.40-2,159.96

Finding the Fourth Proportional to 3,651.52, 5,040.40 and 2,159.96

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Solution

The fourth proportional to 3,651.52, 5,040.40 and 2,159.96 is: 2,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.52 : 5,040.40 = 2,159.96 : x
  2. Step 2: Convert to fraction form
    3,651.52/5,040.40 = 2,159.96/x
  3. Step 3: Cross multiply
    3,651.52x = 5,040.40 × 2,159.96
  4. Step 4: Simplify right side
    3,651.52x = 10,887,062.38
  5. Step 5: Solve for x
    x = 10,887,062.38/3,651.52
  6. Step 6: Final answer
    x = 2,981.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.