Home / 5,091.56-7,631.86-3,331.02

Finding the Fourth Proportional to 5,091.56, 7,631.86 and 3,331.02

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Solution

The fourth proportional to 5,091.56, 7,631.86 and 3,331.02 is: 4,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.56 : 7,631.86 = 3,331.02 : x
  2. Step 2: Convert to fraction form
    5,091.56/7,631.86 = 3,331.02/x
  3. Step 3: Cross multiply
    5,091.56x = 7,631.86 × 3,331.02
  4. Step 4: Simplify right side
    5,091.56x = 25,421,878.30
  5. Step 5: Solve for x
    x = 25,421,878.30/5,091.56
  6. Step 6: Final answer
    x = 4,992.94

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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.