Home / 6,431.25-9,638.91-3,796.08

Finding the Fourth Proportional to 6,431.25, 9,638.91 and 3,796.08

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Solution

The fourth proportional to 6,431.25, 9,638.91 and 3,796.08 is: 5,689.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,431.25 : 9,638.91 = 3,796.08 : x
  2. Step 2: Convert to fraction form
    6,431.25/9,638.91 = 3,796.08/x
  3. Step 3: Cross multiply
    6,431.25x = 9,638.91 × 3,796.08
  4. Step 4: Simplify right side
    6,431.25x = 36,590,073.47
  5. Step 5: Solve for x
    x = 36,590,073.47/6,431.25
  6. Step 6: Final answer
    x = 5,689.42

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1.5x scale

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.