Home / 3,383.10-4,667.97-1,985.10

Finding the Fourth Proportional to 3,383.10, 4,667.97 and 1,985.10

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Solution

The fourth proportional to 3,383.10, 4,667.97 and 1,985.10 is: 2,739.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,383.10 : 4,667.97 = 1,985.10 : x
  2. Step 2: Convert to fraction form
    3,383.10/4,667.97 = 1,985.10/x
  3. Step 3: Cross multiply
    3,383.10x = 4,667.97 × 1,985.10
  4. Step 4: Simplify right side
    3,383.10x = 9,266,387.25
  5. Step 5: Solve for x
    x = 9,266,387.25/3,383.10
  6. Step 6: Final answer
    x = 2,739.02

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.