Home / 3,945.93-5,440.55-3,197.13

Finding the Fourth Proportional to 3,945.93, 5,440.55 and 3,197.13

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Solution

The fourth proportional to 3,945.93, 5,440.55 and 3,197.13 is: 4,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.93 : 5,440.55 = 3,197.13 : x
  2. Step 2: Convert to fraction form
    3,945.93/5,440.55 = 3,197.13/x
  3. Step 3: Cross multiply
    3,945.93x = 5,440.55 × 3,197.13
  4. Step 4: Simplify right side
    3,945.93x = 17,394,129.64
  5. Step 5: Solve for x
    x = 17,394,129.64/3,945.93
  6. Step 6: Final answer
    x = 4,408.12

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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.