Home / 4,197.12-5,781.30-3,487.68

Finding the Fourth Proportional to 4,197.12, 5,781.30 and 3,487.68

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Solution

The fourth proportional to 4,197.12, 5,781.30 and 3,487.68 is: 4,804.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,197.12 : 5,781.30 = 3,487.68 : x
  2. Step 2: Convert to fraction form
    4,197.12/5,781.30 = 3,487.68/x
  3. Step 3: Cross multiply
    4,197.12x = 5,781.30 × 3,487.68
  4. Step 4: Simplify right side
    4,197.12x = 20,163,324.38
  5. Step 5: Solve for x
    x = 20,163,324.38/4,197.12
  6. Step 6: Final answer
    x = 4,804.09

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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.