Home / 5,328.90-7,986.97-3,766.56

Finding the Fourth Proportional to 5,328.90, 7,986.97 and 3,766.56

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Solution

The fourth proportional to 5,328.90, 7,986.97 and 3,766.56 is: 5,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.90 : 7,986.97 = 3,766.56 : x
  2. Step 2: Convert to fraction form
    5,328.90/7,986.97 = 3,766.56/x
  3. Step 3: Cross multiply
    5,328.90x = 7,986.97 × 3,766.56
  4. Step 4: Simplify right side
    5,328.90x = 30,083,392.31
  5. Step 5: Solve for x
    x = 30,083,392.31/5,328.90
  6. Step 6: Final answer
    x = 5,645.33

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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.