Home / 2,850.80-3,933.74-1,591.92

Finding the Fourth Proportional to 2,850.80, 3,933.74 and 1,591.92

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Solution

The fourth proportional to 2,850.80, 3,933.74 and 1,591.92 is: 2,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.80 : 3,933.74 = 1,591.92 : x
  2. Step 2: Convert to fraction form
    2,850.80/3,933.74 = 1,591.92/x
  3. Step 3: Cross multiply
    2,850.80x = 3,933.74 × 1,591.92
  4. Step 4: Simplify right side
    2,850.80x = 6,262,199.38
  5. Step 5: Solve for x
    x = 6,262,199.38/2,850.80
  6. Step 6: Final answer
    x = 2,196.65

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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.