Home / 5,089.65-7,634.49-1,391.92

Finding the Fourth Proportional to 5,089.65, 7,634.49 and 1,391.92

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Solution

The fourth proportional to 5,089.65, 7,634.49 and 1,391.92 is: 2,087.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.65 : 7,634.49 = 1,391.92 : x
  2. Step 2: Convert to fraction form
    5,089.65/7,634.49 = 1,391.92/x
  3. Step 3: Cross multiply
    5,089.65x = 7,634.49 × 1,391.92
  4. Step 4: Simplify right side
    5,089.65x = 10,626,554.19
  5. Step 5: Solve for x
    x = 10,626,554.19/5,089.65
  6. Step 6: Final answer
    x = 2,087.88

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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.