Home / 6,713.28-10,072.80-3,787.20

Finding the Fourth Proportional to 6,713.28, 10,072.80 and 3,787.20

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Solution

The fourth proportional to 6,713.28, 10,072.80 and 3,787.20 is: 5,682.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,713.28 : 10,072.80 = 3,787.20 : x
  2. Step 2: Convert to fraction form
    6,713.28/10,072.80 = 3,787.20/x
  3. Step 3: Cross multiply
    6,713.28x = 10,072.80 × 3,787.20
  4. Step 4: Simplify right side
    6,713.28x = 38,147,708.16
  5. Step 5: Solve for x
    x = 38,147,708.16/6,713.28
  6. Step 6: Final answer
    x = 5,682.42

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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.