Home / 1,979.46-2,964.04-1,921.02

Finding the Fourth Proportional to 1,979.46, 2,964.04 and 1,921.02

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Solution

The fourth proportional to 1,979.46, 2,964.04 and 1,921.02 is: 2,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.46 : 2,964.04 = 1,921.02 : x
  2. Step 2: Convert to fraction form
    1,979.46/2,964.04 = 1,921.02/x
  3. Step 3: Cross multiply
    1,979.46x = 2,964.04 × 1,921.02
  4. Step 4: Simplify right side
    1,979.46x = 5,693,975.01
  5. Step 5: Solve for x
    x = 5,693,975.01/1,979.46
  6. Step 6: Final answer
    x = 2,876.53

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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.