Home / 3,009.36-4,149-1,961.04

Finding the Fourth Proportional to 3,009.36, 4,149 and 1,961.04

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Solution

The fourth proportional to 3,009.36, 4,149 and 1,961.04 is: 2,703.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.36 : 4,149 = 1,961.04 : x
  2. Step 2: Convert to fraction form
    3,009.36/4,149 = 1,961.04/x
  3. Step 3: Cross multiply
    3,009.36x = 4,149 × 1,961.04
  4. Step 4: Simplify right side
    3,009.36x = 8,136,354.96
  5. Step 5: Solve for x
    x = 8,136,354.96/3,009.36
  6. Step 6: Final answer
    x = 2,703.68

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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.