Home / 1,908.20-2,865.96-1,693.64

Finding the Fourth Proportional to 1,908.20, 2,865.96 and 1,693.64

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Solution

The fourth proportional to 1,908.20, 2,865.96 and 1,693.64 is: 2,543.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.20 : 2,865.96 = 1,693.64 : x
  2. Step 2: Convert to fraction form
    1,908.20/2,865.96 = 1,693.64/x
  3. Step 3: Cross multiply
    1,908.20x = 2,865.96 × 1,693.64
  4. Step 4: Simplify right side
    1,908.20x = 4,853,904.49
  5. Step 5: Solve for x
    x = 4,853,904.49/1,908.20
  6. Step 6: Final answer
    x = 2,543.71

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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.