Home / 7,177.13-10,755.67-3,478.38

Finding the Fourth Proportional to 7,177.13, 10,755.67 and 3,478.38

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Solution

The fourth proportional to 7,177.13, 10,755.67 and 3,478.38 is: 5,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,177.13 : 10,755.67 = 3,478.38 : x
  2. Step 2: Convert to fraction form
    7,177.13/10,755.67 = 3,478.38/x
  3. Step 3: Cross multiply
    7,177.13x = 10,755.67 × 3,478.38
  4. Step 4: Simplify right side
    7,177.13x = 37,412,244.94
  5. Step 5: Solve for x
    x = 37,412,244.94/7,177.13
  6. Step 6: Final answer
    x = 5,212.70

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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.