Home / 3,321.36-4,979.28-1,565.50

Finding the Fourth Proportional to 3,321.36, 4,979.28 and 1,565.50

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Solution

The fourth proportional to 3,321.36, 4,979.28 and 1,565.50 is: 2,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.36 : 4,979.28 = 1,565.50 : x
  2. Step 2: Convert to fraction form
    3,321.36/4,979.28 = 1,565.50/x
  3. Step 3: Cross multiply
    3,321.36x = 4,979.28 × 1,565.50
  4. Step 4: Simplify right side
    3,321.36x = 7,795,062.84
  5. Step 5: Solve for x
    x = 7,795,062.84/3,321.36
  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.