Home / 2,975.53-4,101.10-1,979.03

Finding the Fourth Proportional to 2,975.53, 4,101.10 and 1,979.03

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Solution

The fourth proportional to 2,975.53, 4,101.10 and 1,979.03 is: 2,727.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.53 : 4,101.10 = 1,979.03 : x
  2. Step 2: Convert to fraction form
    2,975.53/4,101.10 = 1,979.03/x
  3. Step 3: Cross multiply
    2,975.53x = 4,101.10 × 1,979.03
  4. Step 4: Simplify right side
    2,975.53x = 8,116,179.43
  5. Step 5: Solve for x
    x = 8,116,179.43/2,975.53
  6. Step 6: Final answer
    x = 2,727.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.