Home / 3,109.48-4,663.82-1,161.40

Finding the Fourth Proportional to 3,109.48, 4,663.82 and 1,161.40

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Solution

The fourth proportional to 3,109.48, 4,663.82 and 1,161.40 is: 1,741.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.48 : 4,663.82 = 1,161.40 : x
  2. Step 2: Convert to fraction form
    3,109.48/4,663.82 = 1,161.40/x
  3. Step 3: Cross multiply
    3,109.48x = 4,663.82 × 1,161.40
  4. Step 4: Simplify right side
    3,109.48x = 5,416,560.55
  5. Step 5: Solve for x
    x = 5,416,560.55/3,109.48
  6. Step 6: Final answer
    x = 1,741.95

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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.