Home / 7,712.82-11,569.19-1,869.43

Finding the Fourth Proportional to 7,712.82, 11,569.19 and 1,869.43

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Solution

The fourth proportional to 7,712.82, 11,569.19 and 1,869.43 is: 2,804.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.82 : 11,569.19 = 1,869.43 : x
  2. Step 2: Convert to fraction form
    7,712.82/11,569.19 = 1,869.43/x
  3. Step 3: Cross multiply
    7,712.82x = 11,569.19 × 1,869.43
  4. Step 4: Simplify right side
    7,712.82x = 21,627,790.86
  5. Step 5: Solve for x
    x = 21,627,790.86/7,712.82
  6. Step 6: Final answer
    x = 2,804.14

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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.