Home / 7,133.92-10,704.40-3,439.28

Finding the Fourth Proportional to 7,133.92, 10,704.40 and 3,439.28

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Solution

The fourth proportional to 7,133.92, 10,704.40 and 3,439.28 is: 5,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,133.92 : 10,704.40 = 3,439.28 : x
  2. Step 2: Convert to fraction form
    7,133.92/10,704.40 = 3,439.28/x
  3. Step 3: Cross multiply
    7,133.92x = 10,704.40 × 3,439.28
  4. Step 4: Simplify right side
    7,133.92x = 36,815,428.83
  5. Step 5: Solve for x
    x = 36,815,428.83/7,133.92
  6. Step 6: Final answer
    x = 5,160.62

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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.