Home / 5,139.48-7,711.57-2,795.98

Finding the Fourth Proportional to 5,139.48, 7,711.57 and 2,795.98

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Solution

The fourth proportional to 5,139.48, 7,711.57 and 2,795.98 is: 4,195.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.48 : 7,711.57 = 2,795.98 : x
  2. Step 2: Convert to fraction form
    5,139.48/7,711.57 = 2,795.98/x
  3. Step 3: Cross multiply
    5,139.48x = 7,711.57 × 2,795.98
  4. Step 4: Simplify right side
    5,139.48x = 21,561,367.42
  5. Step 5: Solve for x
    x = 21,561,367.42/5,139.48
  6. Step 6: Final answer
    x = 4,195.24

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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.