Home / 3,322.32-4,986.56-1,680.02

Finding the Fourth Proportional to 3,322.32, 4,986.56 and 1,680.02

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Solution

The fourth proportional to 3,322.32, 4,986.56 and 1,680.02 is: 2,521.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.32 : 4,986.56 = 1,680.02 : x
  2. Step 2: Convert to fraction form
    3,322.32/4,986.56 = 1,680.02/x
  3. Step 3: Cross multiply
    3,322.32x = 4,986.56 × 1,680.02
  4. Step 4: Simplify right side
    3,322.32x = 8,377,487.20
  5. Step 5: Solve for x
    x = 8,377,487.20/3,322.32
  6. Step 6: Final answer
    x = 2,521.58

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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.