Home / 6,986.05-10,466.76-3,691.90

Finding the Fourth Proportional to 6,986.05, 10,466.76 and 3,691.90

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Solution

The fourth proportional to 6,986.05, 10,466.76 and 3,691.90 is: 5,531.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.05 : 10,466.76 = 3,691.90 : x
  2. Step 2: Convert to fraction form
    6,986.05/10,466.76 = 3,691.90/x
  3. Step 3: Cross multiply
    6,986.05x = 10,466.76 × 3,691.90
  4. Step 4: Simplify right side
    6,986.05x = 38,642,231.24
  5. Step 5: Solve for x
    x = 38,642,231.24/6,986.05
  6. Step 6: Final answer
    x = 5,531.34

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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.