Home / 7,378.24-11,067.52-2,758.72

Finding the Fourth Proportional to 7,378.24, 11,067.52 and 2,758.72

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Solution

The fourth proportional to 7,378.24, 11,067.52 and 2,758.72 is: 4,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.24 : 11,067.52 = 2,758.72 : x
  2. Step 2: Convert to fraction form
    7,378.24/11,067.52 = 2,758.72/x
  3. Step 3: Cross multiply
    7,378.24x = 11,067.52 × 2,758.72
  4. Step 4: Simplify right side
    7,378.24x = 30,532,188.77
  5. Step 5: Solve for x
    x = 30,532,188.77/7,378.24
  6. Step 6: Final answer
    x = 4,138.14

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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.