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Finding the Fourth Proportional to 3,331.77, 4,998.19 and 1,665.96

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Solution

The fourth proportional to 3,331.77, 4,998.19 and 1,665.96 is: 2,499.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.77 : 4,998.19 = 1,665.96 : x
  2. Step 2: Convert to fraction form
    3,331.77/4,998.19 = 1,665.96/x
  3. Step 3: Cross multiply
    3,331.77x = 4,998.19 × 1,665.96
  4. Step 4: Simplify right side
    3,331.77x = 8,326,784.61
  5. Step 5: Solve for x
    x = 8,326,784.61/3,331.77
  6. Step 6: Final answer
    x = 2,499.21

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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.