Home / 3,366.87-5,051.14-1,981.36

Finding the Fourth Proportional to 3,366.87, 5,051.14 and 1,981.36

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Solution

The fourth proportional to 3,366.87, 5,051.14 and 1,981.36 is: 2,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,366.87 : 5,051.14 = 1,981.36 : x
  2. Step 2: Convert to fraction form
    3,366.87/5,051.14 = 1,981.36/x
  3. Step 3: Cross multiply
    3,366.87x = 5,051.14 × 1,981.36
  4. Step 4: Simplify right side
    3,366.87x = 10,008,126.75
  5. Step 5: Solve for x
    x = 10,008,126.75/3,366.87
  6. Step 6: Final answer
    x = 2,972.53

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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.