Home / 3,981.09-5,972.04-1,642.08

Finding the Fourth Proportional to 3,981.09, 5,972.04 and 1,642.08

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Solution

The fourth proportional to 3,981.09, 5,972.04 and 1,642.08 is: 2,463.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.09 : 5,972.04 = 1,642.08 : x
  2. Step 2: Convert to fraction form
    3,981.09/5,972.04 = 1,642.08/x
  3. Step 3: Cross multiply
    3,981.09x = 5,972.04 × 1,642.08
  4. Step 4: Simplify right side
    3,981.09x = 9,806,567.44
  5. Step 5: Solve for x
    x = 9,806,567.44/3,981.09
  6. Step 6: Final answer
    x = 2,463.29

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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.