Home / 2,288.41-3,158-1,240.47

Finding the Fourth Proportional to 2,288.41, 3,158 and 1,240.47

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Solution

The fourth proportional to 2,288.41, 3,158 and 1,240.47 is: 1,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,288.41 : 3,158 = 1,240.47 : x
  2. Step 2: Convert to fraction form
    2,288.41/3,158 = 1,240.47/x
  3. Step 3: Cross multiply
    2,288.41x = 3,158 × 1,240.47
  4. Step 4: Simplify right side
    2,288.41x = 3,917,404.26
  5. Step 5: Solve for x
    x = 3,917,404.26/2,288.41
  6. Step 6: Final answer
    x = 1,711.85

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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.