Home / 4,787.79-7,177.42-1,865.43

Finding the Fourth Proportional to 4,787.79, 7,177.42 and 1,865.43

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Solution

The fourth proportional to 4,787.79, 7,177.42 and 1,865.43 is: 2,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.79 : 7,177.42 = 1,865.43 : x
  2. Step 2: Convert to fraction form
    4,787.79/7,177.42 = 1,865.43/x
  3. Step 3: Cross multiply
    4,787.79x = 7,177.42 × 1,865.43
  4. Step 4: Simplify right side
    4,787.79x = 13,388,974.59
  5. Step 5: Solve for x
    x = 13,388,974.59/4,787.79
  6. Step 6: Final answer
    x = 2,796.48

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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.