Home / 6,115.50-8,440.96-3,727.09

Finding the Fourth Proportional to 6,115.50, 8,440.96 and 3,727.09

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Solution

The fourth proportional to 6,115.50, 8,440.96 and 3,727.09 is: 5,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.50 : 8,440.96 = 3,727.09 : x
  2. Step 2: Convert to fraction form
    6,115.50/8,440.96 = 3,727.09/x
  3. Step 3: Cross multiply
    6,115.50x = 8,440.96 × 3,727.09
  4. Step 4: Simplify right side
    6,115.50x = 31,460,202.09
  5. Step 5: Solve for x
    x = 31,460,202.09/6,115.50
  6. Step 6: Final answer
    x = 5,144.34

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Half scale
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Double scale
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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.