Home / 7,161.28-10,743.78-2,231

Finding the Fourth Proportional to 7,161.28, 10,743.78 and 2,231

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Solution

The fourth proportional to 7,161.28, 10,743.78 and 2,231 is: 3,347.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.28 : 10,743.78 = 2,231 : x
  2. Step 2: Convert to fraction form
    7,161.28/10,743.78 = 2,231/x
  3. Step 3: Cross multiply
    7,161.28x = 10,743.78 × 2,231
  4. Step 4: Simplify right side
    7,161.28x = 23,969,373.18
  5. Step 5: Solve for x
    x = 23,969,373.18/7,161.28
  6. Step 6: Final answer
    x = 3,347.08

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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.