Home / 6,111.10-9,169.11-2,215.78

Finding the Fourth Proportional to 6,111.10, 9,169.11 and 2,215.78

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Solution

The fourth proportional to 6,111.10, 9,169.11 and 2,215.78 is: 3,324.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.10 : 9,169.11 = 2,215.78 : x
  2. Step 2: Convert to fraction form
    6,111.10/9,169.11 = 2,215.78/x
  3. Step 3: Cross multiply
    6,111.10x = 9,169.11 × 2,215.78
  4. Step 4: Simplify right side
    6,111.10x = 20,316,730.56
  5. Step 5: Solve for x
    x = 20,316,730.56/6,111.10
  6. Step 6: Final answer
    x = 3,324.56

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1.5x scale

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.