Home / 5,328.87-7,975.85-3,922.88

Finding the Fourth Proportional to 5,328.87, 7,975.85 and 3,922.88

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Solution

The fourth proportional to 5,328.87, 7,975.85 and 3,922.88 is: 5,871.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.87 : 7,975.85 = 3,922.88 : x
  2. Step 2: Convert to fraction form
    5,328.87/7,975.85 = 3,922.88/x
  3. Step 3: Cross multiply
    5,328.87x = 7,975.85 × 3,922.88
  4. Step 4: Simplify right side
    5,328.87x = 31,288,242.95
  5. Step 5: Solve for x
    x = 31,288,242.95/5,328.87
  6. Step 6: Final answer
    x = 5,871.46

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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.