Home / 3,787.60-5,680.99-1,322.47

Finding the Fourth Proportional to 3,787.60, 5,680.99 and 1,322.47

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Solution

The fourth proportional to 3,787.60, 5,680.99 and 1,322.47 is: 1,983.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,787.60 : 5,680.99 = 1,322.47 : x
  2. Step 2: Convert to fraction form
    3,787.60/5,680.99 = 1,322.47/x
  3. Step 3: Cross multiply
    3,787.60x = 5,680.99 × 1,322.47
  4. Step 4: Simplify right side
    3,787.60x = 7,512,921.34
  5. Step 5: Solve for x
    x = 7,512,921.34/3,787.60
  6. Step 6: Final answer
    x = 1,983.56

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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.