Home / 6,756.31-10,136.09-2,139.31

Finding the Fourth Proportional to 6,756.31, 10,136.09 and 2,139.31

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Solution

The fourth proportional to 6,756.31, 10,136.09 and 2,139.31 is: 3,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,756.31 : 10,136.09 = 2,139.31 : x
  2. Step 2: Convert to fraction form
    6,756.31/10,136.09 = 2,139.31/x
  3. Step 3: Cross multiply
    6,756.31x = 10,136.09 × 2,139.31
  4. Step 4: Simplify right side
    6,756.31x = 21,684,238.70
  5. Step 5: Solve for x
    x = 21,684,238.70/6,756.31
  6. Step 6: Final answer
    x = 3,209.48

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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.