Home / 7,639.05-11,456.46-2,708.04

Finding the Fourth Proportional to 7,639.05, 11,456.46 and 2,708.04

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Solution

The fourth proportional to 7,639.05, 11,456.46 and 2,708.04 is: 4,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.05 : 11,456.46 = 2,708.04 : x
  2. Step 2: Convert to fraction form
    7,639.05/11,456.46 = 2,708.04/x
  3. Step 3: Cross multiply
    7,639.05x = 11,456.46 × 2,708.04
  4. Step 4: Simplify right side
    7,639.05x = 31,024,551.94
  5. Step 5: Solve for x
    x = 31,024,551.94/7,639.05
  6. Step 6: Final answer
    x = 4,061.31

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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.