Home / 6,757.39-10,139.73-2,811.38

Finding the Fourth Proportional to 6,757.39, 10,139.73 and 2,811.38

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Solution

The fourth proportional to 6,757.39, 10,139.73 and 2,811.38 is: 4,218.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,757.39 : 10,139.73 = 2,811.38 : x
  2. Step 2: Convert to fraction form
    6,757.39/10,139.73 = 2,811.38/x
  3. Step 3: Cross multiply
    6,757.39x = 10,139.73 × 2,811.38
  4. Step 4: Simplify right side
    6,757.39x = 28,506,572.89
  5. Step 5: Solve for x
    x = 28,506,572.89/6,757.39
  6. Step 6: Final answer
    x = 4,218.57

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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.