Home / 7,198.36-10,780.74-5,541.76

Finding the Fourth Proportional to 7,198.36, 10,780.74 and 5,541.76

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Solution

The fourth proportional to 7,198.36, 10,780.74 and 5,541.76 is: 8,299.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.36 : 10,780.74 = 5,541.76 : x
  2. Step 2: Convert to fraction form
    7,198.36/10,780.74 = 5,541.76/x
  3. Step 3: Cross multiply
    7,198.36x = 10,780.74 × 5,541.76
  4. Step 4: Simplify right side
    7,198.36x = 59,744,273.70
  5. Step 5: Solve for x
    x = 59,744,273.70/7,198.36
  6. Step 6: Final answer
    x = 8,299.71

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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.