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Finding the Fourth Proportional to 3,992.76, 5,507.91 and 2,497.91

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Solution

The fourth proportional to 3,992.76, 5,507.91 and 2,497.91 is: 3,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.76 : 5,507.91 = 2,497.91 : x
  2. Step 2: Convert to fraction form
    3,992.76/5,507.91 = 2,497.91/x
  3. Step 3: Cross multiply
    3,992.76x = 5,507.91 × 2,497.91
  4. Step 4: Simplify right side
    3,992.76x = 13,758,235.93
  5. Step 5: Solve for x
    x = 13,758,235.93/3,992.76
  6. Step 6: Final answer
    x = 3,445.80

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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.