Home / 3,556.31-5,331.42-1,995.03

Finding the Fourth Proportional to 3,556.31, 5,331.42 and 1,995.03

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Solution

The fourth proportional to 3,556.31, 5,331.42 and 1,995.03 is: 2,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,556.31 : 5,331.42 = 1,995.03 : x
  2. Step 2: Convert to fraction form
    3,556.31/5,331.42 = 1,995.03/x
  3. Step 3: Cross multiply
    3,556.31x = 5,331.42 × 1,995.03
  4. Step 4: Simplify right side
    3,556.31x = 10,636,342.84
  5. Step 5: Solve for x
    x = 10,636,342.84/3,556.31
  6. Step 6: Final answer
    x = 2,990.84

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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.