Home / 4,680.11-7,021.13-1,906.78

Finding the Fourth Proportional to 4,680.11, 7,021.13 and 1,906.78

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Solution

The fourth proportional to 4,680.11, 7,021.13 and 1,906.78 is: 2,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,680.11 : 7,021.13 = 1,906.78 : x
  2. Step 2: Convert to fraction form
    4,680.11/7,021.13 = 1,906.78/x
  3. Step 3: Cross multiply
    4,680.11x = 7,021.13 × 1,906.78
  4. Step 4: Simplify right side
    4,680.11x = 13,387,750.26
  5. Step 5: Solve for x
    x = 13,387,750.26/4,680.11
  6. Step 6: Final answer
    x = 2,860.56

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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.