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Finding the Fourth Proportional to 3,981.81, 5,972.64 and 1,348.74

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Solution

The fourth proportional to 3,981.81, 5,972.64 and 1,348.74 is: 2,023.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.81 : 5,972.64 = 1,348.74 : x
  2. Step 2: Convert to fraction form
    3,981.81/5,972.64 = 1,348.74/x
  3. Step 3: Cross multiply
    3,981.81x = 5,972.64 × 1,348.74
  4. Step 4: Simplify right side
    3,981.81x = 8,055,538.47
  5. Step 5: Solve for x
    x = 8,055,538.47/3,981.81
  6. Step 6: Final answer
    x = 2,023.08

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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.