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Finding the Fourth Proportional to 6,940.31, 9,577.01 and 3,955.39

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Solution

The fourth proportional to 6,940.31, 9,577.01 and 3,955.39 is: 5,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.31 : 9,577.01 = 3,955.39 : x
  2. Step 2: Convert to fraction form
    6,940.31/9,577.01 = 3,955.39/x
  3. Step 3: Cross multiply
    6,940.31x = 9,577.01 × 3,955.39
  4. Step 4: Simplify right side
    6,940.31x = 37,880,851.74
  5. Step 5: Solve for x
    x = 37,880,851.74/6,940.31
  6. Step 6: Final answer
    x = 5,458.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.