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Finding the Fourth Proportional to 6,661.94, 9,994.12 and 3,331.93

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Solution

The fourth proportional to 6,661.94, 9,994.12 and 3,331.93 is: 4,998.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.94 : 9,994.12 = 3,331.93 : x
  2. Step 2: Convert to fraction form
    6,661.94/9,994.12 = 3,331.93/x
  3. Step 3: Cross multiply
    6,661.94x = 9,994.12 × 3,331.93
  4. Step 4: Simplify right side
    6,661.94x = 33,299,658.28
  5. Step 5: Solve for x
    x = 33,299,658.28/6,661.94
  6. Step 6: Final answer
    x = 4,998.50

Related Problems

Find fourth proportional to 3,330.97, 4,997.06 and 1,665.96
Half scale
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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.