Home / 6,759.40-10,131.93-3,987.38

Finding the Fourth Proportional to 6,759.40, 10,131.93 and 3,987.38

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Solution

The fourth proportional to 6,759.40, 10,131.93 and 3,987.38 is: 5,976.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,759.40 : 10,131.93 = 3,987.38 : x
  2. Step 2: Convert to fraction form
    6,759.40/10,131.93 = 3,987.38/x
  3. Step 3: Cross multiply
    6,759.40x = 10,131.93 × 3,987.38
  4. Step 4: Simplify right side
    6,759.40x = 40,399,855.04
  5. Step 5: Solve for x
    x = 40,399,855.04/6,759.40
  6. Step 6: Final answer
    x = 5,976.84

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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.