Home / 3,570.11-5,354.61-1,378.56

Finding the Fourth Proportional to 3,570.11, 5,354.61 and 1,378.56

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Solution

The fourth proportional to 3,570.11, 5,354.61 and 1,378.56 is: 2,067.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.11 : 5,354.61 = 1,378.56 : x
  2. Step 2: Convert to fraction form
    3,570.11/5,354.61 = 1,378.56/x
  3. Step 3: Cross multiply
    3,570.11x = 5,354.61 × 1,378.56
  4. Step 4: Simplify right side
    3,570.11x = 7,381,651.16
  5. Step 5: Solve for x
    x = 7,381,651.16/3,570.11
  6. Step 6: Final answer
    x = 2,067.63

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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.