Home / 6,278.83-8,662.28-3,761.08

Finding the Fourth Proportional to 6,278.83, 8,662.28 and 3,761.08

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Solution

The fourth proportional to 6,278.83, 8,662.28 and 3,761.08 is: 5,188.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.83 : 8,662.28 = 3,761.08 : x
  2. Step 2: Convert to fraction form
    6,278.83/8,662.28 = 3,761.08/x
  3. Step 3: Cross multiply
    6,278.83x = 8,662.28 × 3,761.08
  4. Step 4: Simplify right side
    6,278.83x = 32,579,487.60
  5. Step 5: Solve for x
    x = 32,579,487.60/6,278.83
  6. Step 6: Final answer
    x = 5,188.79

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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.