Home / 6,631.13-9,150.90-3,647

Finding the Fourth Proportional to 6,631.13, 9,150.90 and 3,647

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Solution

The fourth proportional to 6,631.13, 9,150.90 and 3,647 is: 5,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.13 : 9,150.90 = 3,647 : x
  2. Step 2: Convert to fraction form
    6,631.13/9,150.90 = 3,647/x
  3. Step 3: Cross multiply
    6,631.13x = 9,150.90 × 3,647
  4. Step 4: Simplify right side
    6,631.13x = 33,373,332.30
  5. Step 5: Solve for x
    x = 33,373,332.30/6,631.13
  6. Step 6: Final answer
    x = 5,032.83

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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.