Home / 6,972.26-9,622.40-3,988.53

Finding the Fourth Proportional to 6,972.26, 9,622.40 and 3,988.53

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Solution

The fourth proportional to 6,972.26, 9,622.40 and 3,988.53 is: 5,504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.26 : 9,622.40 = 3,988.53 : x
  2. Step 2: Convert to fraction form
    6,972.26/9,622.40 = 3,988.53/x
  3. Step 3: Cross multiply
    6,972.26x = 9,622.40 × 3,988.53
  4. Step 4: Simplify right side
    6,972.26x = 38,379,211.13
  5. Step 5: Solve for x
    x = 38,379,211.13/6,972.26
  6. Step 6: Final answer
    x = 5,504.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.