Home / 3,981.02-5,972.52-1,383.98

Finding the Fourth Proportional to 3,981.02, 5,972.52 and 1,383.98

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Solution

The fourth proportional to 3,981.02, 5,972.52 and 1,383.98 is: 2,076.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.02 : 5,972.52 = 1,383.98 : x
  2. Step 2: Convert to fraction form
    3,981.02/5,972.52 = 1,383.98/x
  3. Step 3: Cross multiply
    3,981.02x = 5,972.52 × 1,383.98
  4. Step 4: Simplify right side
    3,981.02x = 8,265,848.23
  5. Step 5: Solve for x
    x = 8,265,848.23/3,981.02
  6. Step 6: Final answer
    x = 2,076.31

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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.