Home / 2,257.18-3,115.86-1,373.26

Finding the Fourth Proportional to 2,257.18, 3,115.86 and 1,373.26

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Solution

The fourth proportional to 2,257.18, 3,115.86 and 1,373.26 is: 1,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.18 : 3,115.86 = 1,373.26 : x
  2. Step 2: Convert to fraction form
    2,257.18/3,115.86 = 1,373.26/x
  3. Step 3: Cross multiply
    2,257.18x = 3,115.86 × 1,373.26
  4. Step 4: Simplify right side
    2,257.18x = 4,278,885.90
  5. Step 5: Solve for x
    x = 4,278,885.90/2,257.18
  6. Step 6: Final answer
    x = 1,895.68

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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.