Home / 5,707.81-7,876.11-3,190.03

Finding the Fourth Proportional to 5,707.81, 7,876.11 and 3,190.03

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Solution

The fourth proportional to 5,707.81, 7,876.11 and 3,190.03 is: 4,401.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.81 : 7,876.11 = 3,190.03 : x
  2. Step 2: Convert to fraction form
    5,707.81/7,876.11 = 3,190.03/x
  3. Step 3: Cross multiply
    5,707.81x = 7,876.11 × 3,190.03
  4. Step 4: Simplify right side
    5,707.81x = 25,125,027.18
  5. Step 5: Solve for x
    x = 25,125,027.18/5,707.81
  6. Step 6: Final answer
    x = 4,401.87

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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.