Home / 6,278.32-8,664.14-3,921.82

Finding the Fourth Proportional to 6,278.32, 8,664.14 and 3,921.82

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Solution

The fourth proportional to 6,278.32, 8,664.14 and 3,921.82 is: 5,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.32 : 8,664.14 = 3,921.82 : x
  2. Step 2: Convert to fraction form
    6,278.32/8,664.14 = 3,921.82/x
  3. Step 3: Cross multiply
    6,278.32x = 8,664.14 × 3,921.82
  4. Step 4: Simplify right side
    6,278.32x = 33,979,197.53
  5. Step 5: Solve for x
    x = 33,979,197.53/6,278.32
  6. Step 6: Final answer
    x = 5,412.15

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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.