Home / 6,111.12-9,170.30-2,215.20

Finding the Fourth Proportional to 6,111.12, 9,170.30 and 2,215.20

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Solution

The fourth proportional to 6,111.12, 9,170.30 and 2,215.20 is: 3,324.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.12 : 9,170.30 = 2,215.20 : x
  2. Step 2: Convert to fraction form
    6,111.12/9,170.30 = 2,215.20/x
  3. Step 3: Cross multiply
    6,111.12x = 9,170.30 × 2,215.20
  4. Step 4: Simplify right side
    6,111.12x = 20,314,048.56
  5. Step 5: Solve for x
    x = 20,314,048.56/6,111.12
  6. Step 6: Final answer
    x = 3,324.11

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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.