Home / 6,940.80-9,577.62-3,956.56

Finding the Fourth Proportional to 6,940.80, 9,577.62 and 3,956.56

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Solution

The fourth proportional to 6,940.80, 9,577.62 and 3,956.56 is: 5,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.80 : 9,577.62 = 3,956.56 : x
  2. Step 2: Convert to fraction form
    6,940.80/9,577.62 = 3,956.56/x
  3. Step 3: Cross multiply
    6,940.80x = 9,577.62 × 3,956.56
  4. Step 4: Simplify right side
    6,940.80x = 37,894,428.19
  5. Step 5: Solve for x
    x = 37,894,428.19/6,940.80
  6. Step 6: Final answer
    x = 5,459.66

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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.