Home / 3,322-4,981.99-1,678.11

Finding the Fourth Proportional to 3,322, 4,981.99 and 1,678.11

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Solution

The fourth proportional to 3,322, 4,981.99 and 1,678.11 is: 2,516.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322 : 4,981.99 = 1,678.11 : x
  2. Step 2: Convert to fraction form
    3,322/4,981.99 = 1,678.11/x
  3. Step 3: Cross multiply
    3,322x = 4,981.99 × 1,678.11
  4. Step 4: Simplify right side
    3,322x = 8,360,327.24
  5. Step 5: Solve for x
    x = 8,360,327.24/3,322
  6. Step 6: Final answer
    x = 2,516.65

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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.