Home / 5,180.46-7,767.95-2,255.34

Finding the Fourth Proportional to 5,180.46, 7,767.95 and 2,255.34

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Solution

The fourth proportional to 5,180.46, 7,767.95 and 2,255.34 is: 3,381.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.46 : 7,767.95 = 2,255.34 : x
  2. Step 2: Convert to fraction form
    5,180.46/7,767.95 = 2,255.34/x
  3. Step 3: Cross multiply
    5,180.46x = 7,767.95 × 2,255.34
  4. Step 4: Simplify right side
    5,180.46x = 17,519,398.89
  5. Step 5: Solve for x
    x = 17,519,398.89/5,180.46
  6. Step 6: Final answer
    x = 3,381.83

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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.