Home / 2,218.80-3,062.52-1,631.28

Finding the Fourth Proportional to 2,218.80, 3,062.52 and 1,631.28

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Solution

The fourth proportional to 2,218.80, 3,062.52 and 1,631.28 is: 2,251.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.80 : 3,062.52 = 1,631.28 : x
  2. Step 2: Convert to fraction form
    2,218.80/3,062.52 = 1,631.28/x
  3. Step 3: Cross multiply
    2,218.80x = 3,062.52 × 1,631.28
  4. Step 4: Simplify right side
    2,218.80x = 4,995,827.63
  5. Step 5: Solve for x
    x = 4,995,827.63/2,218.80
  6. Step 6: Final answer
    x = 2,251.59

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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.