Home / 2,850.76-3,933.84-1,574.38

Finding the Fourth Proportional to 2,850.76, 3,933.84 and 1,574.38

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Solution

The fourth proportional to 2,850.76, 3,933.84 and 1,574.38 is: 2,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.76 : 3,933.84 = 1,574.38 : x
  2. Step 2: Convert to fraction form
    2,850.76/3,933.84 = 1,574.38/x
  3. Step 3: Cross multiply
    2,850.76x = 3,933.84 × 1,574.38
  4. Step 4: Simplify right side
    2,850.76x = 6,193,359.02
  5. Step 5: Solve for x
    x = 6,193,359.02/2,850.76
  6. Step 6: Final answer
    x = 2,172.53

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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.