Home / 3,746.55-5,172.09-2,255.61

Finding the Fourth Proportional to 3,746.55, 5,172.09 and 2,255.61

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Solution

The fourth proportional to 3,746.55, 5,172.09 and 2,255.61 is: 3,113.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.55 : 5,172.09 = 2,255.61 : x
  2. Step 2: Convert to fraction form
    3,746.55/5,172.09 = 2,255.61/x
  3. Step 3: Cross multiply
    3,746.55x = 5,172.09 × 2,255.61
  4. Step 4: Simplify right side
    3,746.55x = 11,666,217.92
  5. Step 5: Solve for x
    x = 11,666,217.92/3,746.55
  6. Step 6: Final answer
    x = 3,113.86

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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.