Home / 3,995.24-5,981.55-2,116.85

Finding the Fourth Proportional to 3,995.24, 5,981.55 and 2,116.85

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Solution

The fourth proportional to 3,995.24, 5,981.55 and 2,116.85 is: 3,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.24 : 5,981.55 = 2,116.85 : x
  2. Step 2: Convert to fraction form
    3,995.24/5,981.55 = 2,116.85/x
  3. Step 3: Cross multiply
    3,995.24x = 5,981.55 × 2,116.85
  4. Step 4: Simplify right side
    3,995.24x = 12,662,014.21
  5. Step 5: Solve for x
    x = 12,662,014.21/3,995.24
  6. Step 6: Final answer
    x = 3,169.28

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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.