Home / 3,570.24-5,356.26-1,378.38

Finding the Fourth Proportional to 3,570.24, 5,356.26 and 1,378.38

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Solution

The fourth proportional to 3,570.24, 5,356.26 and 1,378.38 is: 2,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.24 : 5,356.26 = 1,378.38 : x
  2. Step 2: Convert to fraction form
    3,570.24/5,356.26 = 1,378.38/x
  3. Step 3: Cross multiply
    3,570.24x = 5,356.26 × 1,378.38
  4. Step 4: Simplify right side
    3,570.24x = 7,382,961.66
  5. Step 5: Solve for x
    x = 7,382,961.66/3,570.24
  6. Step 6: Final answer
    x = 2,067.92

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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.