Home / 6,638.27-9,161.22-3,654.76

Finding the Fourth Proportional to 6,638.27, 9,161.22 and 3,654.76

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Solution

The fourth proportional to 6,638.27, 9,161.22 and 3,654.76 is: 5,043.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.27 : 9,161.22 = 3,654.76 : x
  2. Step 2: Convert to fraction form
    6,638.27/9,161.22 = 3,654.76/x
  3. Step 3: Cross multiply
    6,638.27x = 9,161.22 × 3,654.76
  4. Step 4: Simplify right side
    6,638.27x = 33,482,060.41
  5. Step 5: Solve for x
    x = 33,482,060.41/6,638.27
  6. Step 6: Final answer
    x = 5,043.79

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Half scale
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Double scale
Find fourth proportional to 6,639.27, 9,162.60 and 3,655.76
Similar ratio
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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.