Home / 7,182.19-9,911.56-4,198.15

Finding the Fourth Proportional to 7,182.19, 9,911.56 and 4,198.15

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Solution

The fourth proportional to 7,182.19, 9,911.56 and 4,198.15 is: 5,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.19 : 9,911.56 = 4,198.15 : x
  2. Step 2: Convert to fraction form
    7,182.19/9,911.56 = 4,198.15/x
  3. Step 3: Cross multiply
    7,182.19x = 9,911.56 × 4,198.15
  4. Step 4: Simplify right side
    7,182.19x = 41,610,215.61
  5. Step 5: Solve for x
    x = 41,610,215.61/7,182.19
  6. Step 6: Final answer
    x = 5,793.53

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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.