Home / 3,326.64-4,979.43-1,861.35

Finding the Fourth Proportional to 3,326.64, 4,979.43 and 1,861.35

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Solution

The fourth proportional to 3,326.64, 4,979.43 and 1,861.35 is: 2,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.64 : 4,979.43 = 1,861.35 : x
  2. Step 2: Convert to fraction form
    3,326.64/4,979.43 = 1,861.35/x
  3. Step 3: Cross multiply
    3,326.64x = 4,979.43 × 1,861.35
  4. Step 4: Simplify right side
    3,326.64x = 9,268,462.03
  5. Step 5: Solve for x
    x = 9,268,462.03/3,326.64
  6. Step 6: Final answer
    x = 2,786.13

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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.