Home / 3,957.06-5,932.44-1,981.68

Finding the Fourth Proportional to 3,957.06, 5,932.44 and 1,981.68

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Solution

The fourth proportional to 3,957.06, 5,932.44 and 1,981.68 is: 2,970.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.06 : 5,932.44 = 1,981.68 : x
  2. Step 2: Convert to fraction form
    3,957.06/5,932.44 = 1,981.68/x
  3. Step 3: Cross multiply
    3,957.06x = 5,932.44 × 1,981.68
  4. Step 4: Simplify right side
    3,957.06x = 11,756,197.70
  5. Step 5: Solve for x
    x = 11,756,197.70/3,957.06
  6. Step 6: Final answer
    x = 2,970.94

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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.