Home / 3,321.35-4,979.30-1,565.49

Finding the Fourth Proportional to 3,321.35, 4,979.30 and 1,565.49

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Solution

The fourth proportional to 3,321.35, 4,979.30 and 1,565.49 is: 2,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.35 : 4,979.30 = 1,565.49 : x
  2. Step 2: Convert to fraction form
    3,321.35/4,979.30 = 1,565.49/x
  3. Step 3: Cross multiply
    3,321.35x = 4,979.30 × 1,565.49
  4. Step 4: Simplify right side
    3,321.35x = 7,795,036.53
  5. Step 5: Solve for x
    x = 7,795,036.53/3,321.35
  6. Step 6: Final answer
    x = 2,346.95

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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.