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Finding the Fourth Proportional to 6,665.44, 9,996.62 and 1,985.02

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Solution

The fourth proportional to 6,665.44, 9,996.62 and 1,985.02 is: 2,977.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.44 : 9,996.62 = 1,985.02 : x
  2. Step 2: Convert to fraction form
    6,665.44/9,996.62 = 1,985.02/x
  3. Step 3: Cross multiply
    6,665.44x = 9,996.62 × 1,985.02
  4. Step 4: Simplify right side
    6,665.44x = 19,843,517.16
  5. Step 5: Solve for x
    x = 19,843,517.16/6,665.44
  6. Step 6: Final answer
    x = 2,977.08

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Half scale
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Double scale
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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.