Home / 3,981.51-5,972.36-1,059.88

Finding the Fourth Proportional to 3,981.51, 5,972.36 and 1,059.88

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Solution

The fourth proportional to 3,981.51, 5,972.36 and 1,059.88 is: 1,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.51 : 5,972.36 = 1,059.88 : x
  2. Step 2: Convert to fraction form
    3,981.51/5,972.36 = 1,059.88/x
  3. Step 3: Cross multiply
    3,981.51x = 5,972.36 × 1,059.88
  4. Step 4: Simplify right side
    3,981.51x = 6,329,984.92
  5. Step 5: Solve for x
    x = 6,329,984.92/3,981.51
  6. Step 6: Final answer
    x = 1,589.85

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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.