Home / 8,729.68-13,095.13-2,890.39

Finding the Fourth Proportional to 8,729.68, 13,095.13 and 2,890.39

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Solution

The fourth proportional to 8,729.68, 13,095.13 and 2,890.39 is: 4,335.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.68 : 13,095.13 = 2,890.39 : x
  2. Step 2: Convert to fraction form
    8,729.68/13,095.13 = 2,890.39/x
  3. Step 3: Cross multiply
    8,729.68x = 13,095.13 × 2,890.39
  4. Step 4: Simplify right side
    8,729.68x = 37,850,032.80
  5. Step 5: Solve for x
    x = 37,850,032.80/8,729.68
  6. Step 6: Final answer
    x = 4,335.79

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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.