Home / 2,975.38-4,104.36-1,896.64

Finding the Fourth Proportional to 2,975.38, 4,104.36 and 1,896.64

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Solution

The fourth proportional to 2,975.38, 4,104.36 and 1,896.64 is: 2,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.38 : 4,104.36 = 1,896.64 : x
  2. Step 2: Convert to fraction form
    2,975.38/4,104.36 = 1,896.64/x
  3. Step 3: Cross multiply
    2,975.38x = 4,104.36 × 1,896.64
  4. Step 4: Simplify right side
    2,975.38x = 7,784,493.35
  5. Step 5: Solve for x
    x = 7,784,493.35/2,975.38
  6. Step 6: Final answer
    x = 2,616.30

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1.5x scale

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.