Home / 7,929.39-11,894.31-2,382.87

Finding the Fourth Proportional to 7,929.39, 11,894.31 and 2,382.87

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Solution

The fourth proportional to 7,929.39, 11,894.31 and 2,382.87 is: 3,574.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.39 : 11,894.31 = 2,382.87 : x
  2. Step 2: Convert to fraction form
    7,929.39/11,894.31 = 2,382.87/x
  3. Step 3: Cross multiply
    7,929.39x = 11,894.31 × 2,382.87
  4. Step 4: Simplify right side
    7,929.39x = 28,342,594.47
  5. Step 5: Solve for x
    x = 28,342,594.47/7,929.39
  6. Step 6: Final answer
    x = 3,574.37

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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.