Home / 8,689.32-13,034.75-2,449.39

Finding the Fourth Proportional to 8,689.32, 13,034.75 and 2,449.39

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Solution

The fourth proportional to 8,689.32, 13,034.75 and 2,449.39 is: 3,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.32 : 13,034.75 = 2,449.39 : x
  2. Step 2: Convert to fraction form
    8,689.32/13,034.75 = 2,449.39/x
  3. Step 3: Cross multiply
    8,689.32x = 13,034.75 × 2,449.39
  4. Step 4: Simplify right side
    8,689.32x = 31,927,186.30
  5. Step 5: Solve for x
    x = 31,927,186.30/8,689.32
  6. Step 6: Final answer
    x = 3,674.30

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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.