Home / 2,257.72-3,386.34-1,087.36

Finding the Fourth Proportional to 2,257.72, 3,386.34 and 1,087.36

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Solution

The fourth proportional to 2,257.72, 3,386.34 and 1,087.36 is: 1,630.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.72 : 3,386.34 = 1,087.36 : x
  2. Step 2: Convert to fraction form
    2,257.72/3,386.34 = 1,087.36/x
  3. Step 3: Cross multiply
    2,257.72x = 3,386.34 × 1,087.36
  4. Step 4: Simplify right side
    2,257.72x = 3,682,170.66
  5. Step 5: Solve for x
    x = 3,682,170.66/2,257.72
  6. Step 6: Final answer
    x = 1,630.92

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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.