Home / 4,221.95-6,331.84-1,998.59

Finding the Fourth Proportional to 4,221.95, 6,331.84 and 1,998.59

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Solution

The fourth proportional to 4,221.95, 6,331.84 and 1,998.59 is: 2,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.95 : 6,331.84 = 1,998.59 : x
  2. Step 2: Convert to fraction form
    4,221.95/6,331.84 = 1,998.59/x
  3. Step 3: Cross multiply
    4,221.95x = 6,331.84 × 1,998.59
  4. Step 4: Simplify right side
    4,221.95x = 12,654,752.11
  5. Step 5: Solve for x
    x = 12,654,752.11/4,221.95
  6. Step 6: Final answer
    x = 2,997.37

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Double scale
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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.