Home / 6,641.52-9,961.96-1,961.32

Finding the Fourth Proportional to 6,641.52, 9,961.96 and 1,961.32

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Solution

The fourth proportional to 6,641.52, 9,961.96 and 1,961.32 is: 2,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.52 : 9,961.96 = 1,961.32 : x
  2. Step 2: Convert to fraction form
    6,641.52/9,961.96 = 1,961.32/x
  3. Step 3: Cross multiply
    6,641.52x = 9,961.96 × 1,961.32
  4. Step 4: Simplify right side
    6,641.52x = 19,538,591.39
  5. Step 5: Solve for x
    x = 19,538,591.39/6,641.52
  6. Step 6: Final answer
    x = 2,941.89

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.