Home / 6,131.28-9,198.42-1,971.36

Finding the Fourth Proportional to 6,131.28, 9,198.42 and 1,971.36

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Solution

The fourth proportional to 6,131.28, 9,198.42 and 1,971.36 is: 2,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,131.28 : 9,198.42 = 1,971.36 : x
  2. Step 2: Convert to fraction form
    6,131.28/9,198.42 = 1,971.36/x
  3. Step 3: Cross multiply
    6,131.28x = 9,198.42 × 1,971.36
  4. Step 4: Simplify right side
    6,131.28x = 18,133,397.25
  5. Step 5: Solve for x
    x = 18,133,397.25/6,131.28
  6. Step 6: Final answer
    x = 2,957.52

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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.