Home / 7,786.29-11,677.71-2,238.40

Finding the Fourth Proportional to 7,786.29, 11,677.71 and 2,238.40

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Solution

The fourth proportional to 7,786.29, 11,677.71 and 2,238.40 is: 3,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.29 : 11,677.71 = 2,238.40 : x
  2. Step 2: Convert to fraction form
    7,786.29/11,677.71 = 2,238.40/x
  3. Step 3: Cross multiply
    7,786.29x = 11,677.71 × 2,238.40
  4. Step 4: Simplify right side
    7,786.29x = 26,139,327.68
  5. Step 5: Solve for x
    x = 26,139,327.68/7,786.29
  6. Step 6: Final answer
    x = 3,357.10

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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.