Home / 6,115.08-8,438.94-3,631.08

Finding the Fourth Proportional to 6,115.08, 8,438.94 and 3,631.08

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Solution

The fourth proportional to 6,115.08, 8,438.94 and 3,631.08 is: 5,010.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.08 : 8,438.94 = 3,631.08 : x
  2. Step 2: Convert to fraction form
    6,115.08/8,438.94 = 3,631.08/x
  3. Step 3: Cross multiply
    6,115.08x = 8,438.94 × 3,631.08
  4. Step 4: Simplify right side
    6,115.08x = 30,642,466.26
  5. Step 5: Solve for x
    x = 30,642,466.26/6,115.08
  6. Step 6: Final answer
    x = 5,010.97

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1.5x scale

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.