Home / 3,976.90-5,961.58-1,895.80

Finding the Fourth Proportional to 3,976.90, 5,961.58 and 1,895.80

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Solution

The fourth proportional to 3,976.90, 5,961.58 and 1,895.80 is: 2,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.90 : 5,961.58 = 1,895.80 : x
  2. Step 2: Convert to fraction form
    3,976.90/5,961.58 = 1,895.80/x
  3. Step 3: Cross multiply
    3,976.90x = 5,961.58 × 1,895.80
  4. Step 4: Simplify right side
    3,976.90x = 11,301,963.36
  5. Step 5: Solve for x
    x = 11,301,963.36/3,976.90
  6. Step 6: Final answer
    x = 2,841.90

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1.5x scale

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.