Home / 3,927.80-5,889.56-1,949.07

Finding the Fourth Proportional to 3,927.80, 5,889.56 and 1,949.07

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Solution

The fourth proportional to 3,927.80, 5,889.56 and 1,949.07 is: 2,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.80 : 5,889.56 = 1,949.07 : x
  2. Step 2: Convert to fraction form
    3,927.80/5,889.56 = 1,949.07/x
  3. Step 3: Cross multiply
    3,927.80x = 5,889.56 × 1,949.07
  4. Step 4: Simplify right side
    3,927.80x = 11,479,182.35
  5. Step 5: Solve for x
    x = 11,479,182.35/3,927.80
  6. Step 6: Final answer
    x = 2,922.55

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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.