Home / 3,569.20-5,351.97-1,378.56

Finding the Fourth Proportional to 3,569.20, 5,351.97 and 1,378.56

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Solution

The fourth proportional to 3,569.20, 5,351.97 and 1,378.56 is: 2,067.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.20 : 5,351.97 = 1,378.56 : x
  2. Step 2: Convert to fraction form
    3,569.20/5,351.97 = 1,378.56/x
  3. Step 3: Cross multiply
    3,569.20x = 5,351.97 × 1,378.56
  4. Step 4: Simplify right side
    3,569.20x = 7,378,011.76
  5. Step 5: Solve for x
    x = 7,378,011.76/3,569.20
  6. Step 6: Final answer
    x = 2,067.13

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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.