Home / 6,689.12-10,034.28-3,786.08

Finding the Fourth Proportional to 6,689.12, 10,034.28 and 3,786.08

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Solution

The fourth proportional to 6,689.12, 10,034.28 and 3,786.08 is: 5,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.12 : 10,034.28 = 3,786.08 : x
  2. Step 2: Convert to fraction form
    6,689.12/10,034.28 = 3,786.08/x
  3. Step 3: Cross multiply
    6,689.12x = 10,034.28 × 3,786.08
  4. Step 4: Simplify right side
    6,689.12x = 37,990,536.65
  5. Step 5: Solve for x
    x = 37,990,536.65/6,689.12
  6. Step 6: Final answer
    x = 5,679.46

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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.