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Finding the Fourth Proportional to 7,994.61, 11,991.93 and 2,998.11

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Solution

The fourth proportional to 7,994.61, 11,991.93 and 2,998.11 is: 4,497.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.61 : 11,991.93 = 2,998.11 : x
  2. Step 2: Convert to fraction form
    7,994.61/11,991.93 = 2,998.11/x
  3. Step 3: Cross multiply
    7,994.61x = 11,991.93 × 2,998.11
  4. Step 4: Simplify right side
    7,994.61x = 35,953,125.25
  5. Step 5: Solve for x
    x = 35,953,125.25/7,994.61
  6. Step 6: Final answer
    x = 4,497.17

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.