Home / 3,191.74-4,787.56-1,548.43

Finding the Fourth Proportional to 3,191.74, 4,787.56 and 1,548.43

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Solution

The fourth proportional to 3,191.74, 4,787.56 and 1,548.43 is: 2,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.74 : 4,787.56 = 1,548.43 : x
  2. Step 2: Convert to fraction form
    3,191.74/4,787.56 = 1,548.43/x
  3. Step 3: Cross multiply
    3,191.74x = 4,787.56 × 1,548.43
  4. Step 4: Simplify right side
    3,191.74x = 7,413,201.53
  5. Step 5: Solve for x
    x = 7,413,201.53/3,191.74
  6. Step 6: Final answer
    x = 2,322.62

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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.