Home / 6,712.41-9,261.04-3,878.75

Finding the Fourth Proportional to 6,712.41, 9,261.04 and 3,878.75

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Solution

The fourth proportional to 6,712.41, 9,261.04 and 3,878.75 is: 5,351.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.41 : 9,261.04 = 3,878.75 : x
  2. Step 2: Convert to fraction form
    6,712.41/9,261.04 = 3,878.75/x
  3. Step 3: Cross multiply
    6,712.41x = 9,261.04 × 3,878.75
  4. Step 4: Simplify right side
    6,712.41x = 35,921,290.54
  5. Step 5: Solve for x
    x = 35,921,290.54/6,712.41
  6. Step 6: Final answer
    x = 5,351.47

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Half scale
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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.