Home / 7,131.96-10,699.56-2,749.66

Finding the Fourth Proportional to 7,131.96, 10,699.56 and 2,749.66

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Solution

The fourth proportional to 7,131.96, 10,699.56 and 2,749.66 is: 4,125.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.96 : 10,699.56 = 2,749.66 : x
  2. Step 2: Convert to fraction form
    7,131.96/10,699.56 = 2,749.66/x
  3. Step 3: Cross multiply
    7,131.96x = 10,699.56 × 2,749.66
  4. Step 4: Simplify right side
    7,131.96x = 29,420,125.40
  5. Step 5: Solve for x
    x = 29,420,125.40/7,131.96
  6. Step 6: Final answer
    x = 4,125.11

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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.