Home / 6,101.66-8,420.72-3,449.09

Finding the Fourth Proportional to 6,101.66, 8,420.72 and 3,449.09

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Solution

The fourth proportional to 6,101.66, 8,420.72 and 3,449.09 is: 4,759.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,101.66 : 8,420.72 = 3,449.09 : x
  2. Step 2: Convert to fraction form
    6,101.66/8,420.72 = 3,449.09/x
  3. Step 3: Cross multiply
    6,101.66x = 8,420.72 × 3,449.09
  4. Step 4: Simplify right side
    6,101.66x = 29,043,761.80
  5. Step 5: Solve for x
    x = 29,043,761.80/6,101.66
  6. Step 6: Final answer
    x = 4,759.98

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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.