Home / 7,785.27-11,679.69-2,238.66

Finding the Fourth Proportional to 7,785.27, 11,679.69 and 2,238.66

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Solution

The fourth proportional to 7,785.27, 11,679.69 and 2,238.66 is: 3,358.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.27 : 11,679.69 = 2,238.66 : x
  2. Step 2: Convert to fraction form
    7,785.27/11,679.69 = 2,238.66/x
  3. Step 3: Cross multiply
    7,785.27x = 11,679.69 × 2,238.66
  4. Step 4: Simplify right side
    7,785.27x = 26,146,854.82
  5. Step 5: Solve for x
    x = 26,146,854.82/7,785.27
  6. Step 6: Final answer
    x = 3,358.50

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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.