Home / 3,747.90-5,172.30-2,255.88

Finding the Fourth Proportional to 3,747.90, 5,172.30 and 2,255.88

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Solution

The fourth proportional to 3,747.90, 5,172.30 and 2,255.88 is: 3,113.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.90 : 5,172.30 = 2,255.88 : x
  2. Step 2: Convert to fraction form
    3,747.90/5,172.30 = 2,255.88/x
  3. Step 3: Cross multiply
    3,747.90x = 5,172.30 × 2,255.88
  4. Step 4: Simplify right side
    3,747.90x = 11,668,088.12
  5. Step 5: Solve for x
    x = 11,668,088.12/3,747.90
  6. Step 6: Final answer
    x = 3,113.23

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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.