Home / 5,020.68-6,928.46-2,782.55

Finding the Fourth Proportional to 5,020.68, 6,928.46 and 2,782.55

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Solution

The fourth proportional to 5,020.68, 6,928.46 and 2,782.55 is: 3,839.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,020.68 : 6,928.46 = 2,782.55 : x
  2. Step 2: Convert to fraction form
    5,020.68/6,928.46 = 2,782.55/x
  3. Step 3: Cross multiply
    5,020.68x = 6,928.46 × 2,782.55
  4. Step 4: Simplify right side
    5,020.68x = 19,278,786.37
  5. Step 5: Solve for x
    x = 19,278,786.37/5,020.68
  6. Step 6: Final answer
    x = 3,839.88

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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.