Home / 6,871.74-10,309.43-2,191.56

Finding the Fourth Proportional to 6,871.74, 10,309.43 and 2,191.56

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Solution

The fourth proportional to 6,871.74, 10,309.43 and 2,191.56 is: 3,287.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.74 : 10,309.43 = 2,191.56 : x
  2. Step 2: Convert to fraction form
    6,871.74/10,309.43 = 2,191.56/x
  3. Step 3: Cross multiply
    6,871.74x = 10,309.43 × 2,191.56
  4. Step 4: Simplify right side
    6,871.74x = 22,593,688.90
  5. Step 5: Solve for x
    x = 22,593,688.90/6,871.74
  6. Step 6: Final answer
    x = 3,287.92

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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.