Home / 5,421.05-7,481.16-2,998.49

Finding the Fourth Proportional to 5,421.05, 7,481.16 and 2,998.49

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Solution

The fourth proportional to 5,421.05, 7,481.16 and 2,998.49 is: 4,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.05 : 7,481.16 = 2,998.49 : x
  2. Step 2: Convert to fraction form
    5,421.05/7,481.16 = 2,998.49/x
  3. Step 3: Cross multiply
    5,421.05x = 7,481.16 × 2,998.49
  4. Step 4: Simplify right side
    5,421.05x = 22,432,146.04
  5. Step 5: Solve for x
    x = 22,432,146.04/5,421.05
  6. Step 6: Final answer
    x = 4,137.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.