Home / 1,193.71-1,787.33-615.37

Finding the Fourth Proportional to 1,193.71, 1,787.33 and 615.37

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Solution

The fourth proportional to 1,193.71, 1,787.33 and 615.37 is: 921.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193.71 : 1,787.33 = 615.37 : x
  2. Step 2: Convert to fraction form
    1,193.71/1,787.33 = 615.37/x
  3. Step 3: Cross multiply
    1,193.71x = 1,787.33 × 615.37
  4. Step 4: Simplify right side
    1,193.71x = 1,099,869.26
  5. Step 5: Solve for x
    x = 1,099,869.26/1,193.71
  6. Step 6: Final answer
    x = 921.39

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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.