Home / 3,581.36-4,942.19-1,987.96

Finding the Fourth Proportional to 3,581.36, 4,942.19 and 1,987.96

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Solution

The fourth proportional to 3,581.36, 4,942.19 and 1,987.96 is: 2,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.36 : 4,942.19 = 1,987.96 : x
  2. Step 2: Convert to fraction form
    3,581.36/4,942.19 = 1,987.96/x
  3. Step 3: Cross multiply
    3,581.36x = 4,942.19 × 1,987.96
  4. Step 4: Simplify right side
    3,581.36x = 9,824,888.98
  5. Step 5: Solve for x
    x = 9,824,888.98/3,581.36
  6. Step 6: Final answer
    x = 2,743.34

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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.