Home / 7,785.43-11,679.87-2,238.35

Finding the Fourth Proportional to 7,785.43, 11,679.87 and 2,238.35

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Solution

The fourth proportional to 7,785.43, 11,679.87 and 2,238.35 is: 3,358.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.43 : 11,679.87 = 2,238.35 : x
  2. Step 2: Convert to fraction form
    7,785.43/11,679.87 = 2,238.35/x
  3. Step 3: Cross multiply
    7,785.43x = 11,679.87 × 2,238.35
  4. Step 4: Simplify right side
    7,785.43x = 26,143,637.01
  5. Step 5: Solve for x
    x = 26,143,637.01/7,785.43
  6. Step 6: Final answer
    x = 3,358.02

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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.