Home / 6,631.50-9,151.41-3,647.28

Finding the Fourth Proportional to 6,631.50, 9,151.41 and 3,647.28

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Solution

The fourth proportional to 6,631.50, 9,151.41 and 3,647.28 is: 5,033.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.50 : 9,151.41 = 3,647.28 : x
  2. Step 2: Convert to fraction form
    6,631.50/9,151.41 = 3,647.28/x
  3. Step 3: Cross multiply
    6,631.50x = 9,151.41 × 3,647.28
  4. Step 4: Simplify right side
    6,631.50x = 33,377,754.66
  5. Step 5: Solve for x
    x = 33,377,754.66/6,631.50
  6. Step 6: Final answer
    x = 5,033.21

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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.