Home / 6,756.38-10,136.19-2,139.38

Finding the Fourth Proportional to 6,756.38, 10,136.19 and 2,139.38

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Solution

The fourth proportional to 6,756.38, 10,136.19 and 2,139.38 is: 3,209.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,756.38 : 10,136.19 = 2,139.38 : x
  2. Step 2: Convert to fraction form
    6,756.38/10,136.19 = 2,139.38/x
  3. Step 3: Cross multiply
    6,756.38x = 10,136.19 × 2,139.38
  4. Step 4: Simplify right side
    6,756.38x = 21,685,162.16
  5. Step 5: Solve for x
    x = 21,685,162.16/6,756.38
  6. Step 6: Final answer
    x = 3,209.58

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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.