Home / 5,198.24-7,800.60-2,077.76

Finding the Fourth Proportional to 5,198.24, 7,800.60 and 2,077.76

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Solution

The fourth proportional to 5,198.24, 7,800.60 and 2,077.76 is: 3,117.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.24 : 7,800.60 = 2,077.76 : x
  2. Step 2: Convert to fraction form
    5,198.24/7,800.60 = 2,077.76/x
  3. Step 3: Cross multiply
    5,198.24x = 7,800.60 × 2,077.76
  4. Step 4: Simplify right side
    5,198.24x = 16,207,725.26
  5. Step 5: Solve for x
    x = 16,207,725.26/5,198.24
  6. Step 6: Final answer
    x = 3,117.93

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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.