Home / 3,738.80-5,159.76-2,167.04

Finding the Fourth Proportional to 3,738.80, 5,159.76 and 2,167.04

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Solution

The fourth proportional to 3,738.80, 5,159.76 and 2,167.04 is: 2,990.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.80 : 5,159.76 = 2,167.04 : x
  2. Step 2: Convert to fraction form
    3,738.80/5,159.76 = 2,167.04/x
  3. Step 3: Cross multiply
    3,738.80x = 5,159.76 × 2,167.04
  4. Step 4: Simplify right side
    3,738.80x = 11,181,406.31
  5. Step 5: Solve for x
    x = 11,181,406.31/3,738.80
  6. Step 6: Final answer
    x = 2,990.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.