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Finding the Fourth Proportional to 5,170.45, 7,751.04 and 1,881.22

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Solution

The fourth proportional to 5,170.45, 7,751.04 and 1,881.22 is: 2,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.45 : 7,751.04 = 1,881.22 : x
  2. Step 2: Convert to fraction form
    5,170.45/7,751.04 = 1,881.22/x
  3. Step 3: Cross multiply
    5,170.45x = 7,751.04 × 1,881.22
  4. Step 4: Simplify right side
    5,170.45x = 14,581,372.71
  5. Step 5: Solve for x
    x = 14,581,372.71/5,170.45
  6. Step 6: Final answer
    x = 2,820.14

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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.