Home / 6,665.25-9,997.68-1,985.49

Finding the Fourth Proportional to 6,665.25, 9,997.68 and 1,985.49

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Solution

The fourth proportional to 6,665.25, 9,997.68 and 1,985.49 is: 2,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.25 : 9,997.68 = 1,985.49 : x
  2. Step 2: Convert to fraction form
    6,665.25/9,997.68 = 1,985.49/x
  3. Step 3: Cross multiply
    6,665.25x = 9,997.68 × 1,985.49
  4. Step 4: Simplify right side
    6,665.25x = 19,850,293.66
  5. Step 5: Solve for x
    x = 19,850,293.66/6,665.25
  6. Step 6: Final answer
    x = 2,978.18

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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.