Home / 2,159.43-2,979.90-1,227.93

Finding the Fourth Proportional to 2,159.43, 2,979.90 and 1,227.93

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Solution

The fourth proportional to 2,159.43, 2,979.90 and 1,227.93 is: 1,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159.43 : 2,979.90 = 1,227.93 : x
  2. Step 2: Convert to fraction form
    2,159.43/2,979.90 = 1,227.93/x
  3. Step 3: Cross multiply
    2,159.43x = 2,979.90 × 1,227.93
  4. Step 4: Simplify right side
    2,159.43x = 3,659,108.61
  5. Step 5: Solve for x
    x = 3,659,108.61/2,159.43
  6. Step 6: Final answer
    x = 1,694.48

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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.