Home / 3,787.50-5,683.80-1,322.31

Finding the Fourth Proportional to 3,787.50, 5,683.80 and 1,322.31

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Solution

The fourth proportional to 3,787.50, 5,683.80 and 1,322.31 is: 1,984.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.50 : 5,683.80 = 1,322.31 : x
  2. Step 2: Convert to fraction form
    3,787.50/5,683.80 = 1,322.31/x
  3. Step 3: Cross multiply
    3,787.50x = 5,683.80 × 1,322.31
  4. Step 4: Simplify right side
    3,787.50x = 7,515,745.58
  5. Step 5: Solve for x
    x = 7,515,745.58/3,787.50
  6. Step 6: Final answer
    x = 1,984.36

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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.