Home / 2,291.98-3,439.41-1,122.70

Finding the Fourth Proportional to 2,291.98, 3,439.41 and 1,122.70

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Solution

The fourth proportional to 2,291.98, 3,439.41 and 1,122.70 is: 1,684.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.98 : 3,439.41 = 1,122.70 : x
  2. Step 2: Convert to fraction form
    2,291.98/3,439.41 = 1,122.70/x
  3. Step 3: Cross multiply
    2,291.98x = 3,439.41 × 1,122.70
  4. Step 4: Simplify right side
    2,291.98x = 3,861,425.61
  5. Step 5: Solve for x
    x = 3,861,425.61/2,291.98
  6. Step 6: Final answer
    x = 1,684.76

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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.