Home / 3,322.83-4,987.32-1,680.54

Finding the Fourth Proportional to 3,322.83, 4,987.32 and 1,680.54

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Solution

The fourth proportional to 3,322.83, 4,987.32 and 1,680.54 is: 2,522.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.83 : 4,987.32 = 1,680.54 : x
  2. Step 2: Convert to fraction form
    3,322.83/4,987.32 = 1,680.54/x
  3. Step 3: Cross multiply
    3,322.83x = 4,987.32 × 1,680.54
  4. Step 4: Simplify right side
    3,322.83x = 8,381,390.75
  5. Step 5: Solve for x
    x = 8,381,390.75/3,322.83
  6. Step 6: Final answer
    x = 2,522.37

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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.