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Finding the Fourth Proportional to 3,981.84, 5,973.41 and 1,349.51

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Solution

The fourth proportional to 3,981.84, 5,973.41 and 1,349.51 is: 2,024.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.84 : 5,973.41 = 1,349.51 : x
  2. Step 2: Convert to fraction form
    3,981.84/5,973.41 = 1,349.51/x
  3. Step 3: Cross multiply
    3,981.84x = 5,973.41 × 1,349.51
  4. Step 4: Simplify right side
    3,981.84x = 8,061,139.91
  5. Step 5: Solve for x
    x = 8,061,139.91/3,981.84
  6. Step 6: Final answer
    x = 2,024.48

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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.