Home / 3,020.72-4,168.75-1,694.35

Finding the Fourth Proportional to 3,020.72, 4,168.75 and 1,694.35

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Solution

The fourth proportional to 3,020.72, 4,168.75 and 1,694.35 is: 2,338.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.72 : 4,168.75 = 1,694.35 : x
  2. Step 2: Convert to fraction form
    3,020.72/4,168.75 = 1,694.35/x
  3. Step 3: Cross multiply
    3,020.72x = 4,168.75 × 1,694.35
  4. Step 4: Simplify right side
    3,020.72x = 7,063,321.56
  5. Step 5: Solve for x
    x = 7,063,321.56/3,020.72
  6. Step 6: Final answer
    x = 2,338.29

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Half scale
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Double scale
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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.