Home / 9,161.39-13,741.92-2,921.31

Finding the Fourth Proportional to 9,161.39, 13,741.92 and 2,921.31

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Solution

The fourth proportional to 9,161.39, 13,741.92 and 2,921.31 is: 4,381.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.39 : 13,741.92 = 2,921.31 : x
  2. Step 2: Convert to fraction form
    9,161.39/13,741.92 = 2,921.31/x
  3. Step 3: Cross multiply
    9,161.39x = 13,741.92 × 2,921.31
  4. Step 4: Simplify right side
    9,161.39x = 40,144,408.32
  5. Step 5: Solve for x
    x = 40,144,408.32/9,161.39
  6. Step 6: Final answer
    x = 4,381.91

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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.