Home / 4,104.91-5,648.36-3,990.09

Finding the Fourth Proportional to 4,104.91, 5,648.36 and 3,990.09

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Solution

The fourth proportional to 4,104.91, 5,648.36 and 3,990.09 is: 5,490.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,104.91 : 5,648.36 = 3,990.09 : x
  2. Step 2: Convert to fraction form
    4,104.91/5,648.36 = 3,990.09/x
  3. Step 3: Cross multiply
    4,104.91x = 5,648.36 × 3,990.09
  4. Step 4: Simplify right side
    4,104.91x = 22,537,464.75
  5. Step 5: Solve for x
    x = 22,537,464.75/4,104.91
  6. Step 6: Final answer
    x = 5,490.37

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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.