Home / 4,508.78-6,215-3,180.38

Finding the Fourth Proportional to 4,508.78, 6,215 and 3,180.38

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Solution

The fourth proportional to 4,508.78, 6,215 and 3,180.38 is: 4,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,508.78 : 6,215 = 3,180.38 : x
  2. Step 2: Convert to fraction form
    4,508.78/6,215 = 3,180.38/x
  3. Step 3: Cross multiply
    4,508.78x = 6,215 × 3,180.38
  4. Step 4: Simplify right side
    4,508.78x = 19,766,061.70
  5. Step 5: Solve for x
    x = 19,766,061.70/4,508.78
  6. Step 6: Final answer
    x = 4,383.90

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1.5x scale

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.