Home / 5,397.49-8,091.43-2,109.84

Finding the Fourth Proportional to 5,397.49, 8,091.43 and 2,109.84

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Solution

The fourth proportional to 5,397.49, 8,091.43 and 2,109.84 is: 3,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.49 : 8,091.43 = 2,109.84 : x
  2. Step 2: Convert to fraction form
    5,397.49/8,091.43 = 2,109.84/x
  3. Step 3: Cross multiply
    5,397.49x = 8,091.43 × 2,109.84
  4. Step 4: Simplify right side
    5,397.49x = 17,071,622.67
  5. Step 5: Solve for x
    x = 17,071,622.67/5,397.49
  6. Step 6: Final answer
    x = 3,162.88

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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.