Home / 4,091.03-5,648.40-3,145.15

Finding the Fourth Proportional to 4,091.03, 5,648.40 and 3,145.15

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Solution

The fourth proportional to 4,091.03, 5,648.40 and 3,145.15 is: 4,342.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.03 : 5,648.40 = 3,145.15 : x
  2. Step 2: Convert to fraction form
    4,091.03/5,648.40 = 3,145.15/x
  3. Step 3: Cross multiply
    4,091.03x = 5,648.40 × 3,145.15
  4. Step 4: Simplify right side
    4,091.03x = 17,765,021.29
  5. Step 5: Solve for x
    x = 17,765,021.29/4,091.03
  6. Step 6: Final answer
    x = 4,342.44

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Half 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.