Home / 7,165.47-10,741.79-2,781.89

Finding the Fourth Proportional to 7,165.47, 10,741.79 and 2,781.89

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Solution

The fourth proportional to 7,165.47, 10,741.79 and 2,781.89 is: 4,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.47 : 10,741.79 = 2,781.89 : x
  2. Step 2: Convert to fraction form
    7,165.47/10,741.79 = 2,781.89/x
  3. Step 3: Cross multiply
    7,165.47x = 10,741.79 × 2,781.89
  4. Step 4: Simplify right side
    7,165.47x = 29,882,431.43
  5. Step 5: Solve for x
    x = 29,882,431.43/7,165.47
  6. Step 6: Final answer
    x = 4,170.34

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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.