Home / 5,089.73-7,634.57-1,391.85

Finding the Fourth Proportional to 5,089.73, 7,634.57 and 1,391.85

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Solution

The fourth proportional to 5,089.73, 7,634.57 and 1,391.85 is: 2,087.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,089.73 : 7,634.57 = 1,391.85 : x
  2. Step 2: Convert to fraction form
    5,089.73/7,634.57 = 1,391.85/x
  3. Step 3: Cross multiply
    5,089.73x = 7,634.57 × 1,391.85
  4. Step 4: Simplify right side
    5,089.73x = 10,626,169.30
  5. Step 5: Solve for x
    x = 10,626,169.30/5,089.73
  6. Step 6: Final answer
    x = 2,087.77

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1.5x scale

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.