Home / 5,380.03-8,072.34-2,911.96

Finding the Fourth Proportional to 5,380.03, 8,072.34 and 2,911.96

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Solution

The fourth proportional to 5,380.03, 8,072.34 and 2,911.96 is: 4,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.03 : 8,072.34 = 2,911.96 : x
  2. Step 2: Convert to fraction form
    5,380.03/8,072.34 = 2,911.96/x
  3. Step 3: Cross multiply
    5,380.03x = 8,072.34 × 2,911.96
  4. Step 4: Simplify right side
    5,380.03x = 23,506,331.19
  5. Step 5: Solve for x
    x = 23,506,331.19/5,380.03
  6. Step 6: Final answer
    x = 4,369.18

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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.