Home / 7,180.85-9,908.15-4,196.11

Finding the Fourth Proportional to 7,180.85, 9,908.15 and 4,196.11

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Solution

The fourth proportional to 7,180.85, 9,908.15 and 4,196.11 is: 5,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.85 : 9,908.15 = 4,196.11 : x
  2. Step 2: Convert to fraction form
    7,180.85/9,908.15 = 4,196.11/x
  3. Step 3: Cross multiply
    7,180.85x = 9,908.15 × 4,196.11
  4. Step 4: Simplify right side
    7,180.85x = 41,575,687.30
  5. Step 5: Solve for x
    x = 41,575,687.30/7,180.85
  6. Step 6: Final answer
    x = 5,789.80

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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.