Home / 5,122.36-7,067.57-3,132.19

Finding the Fourth Proportional to 5,122.36, 7,067.57 and 3,132.19

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Solution

The fourth proportional to 5,122.36, 7,067.57 and 3,132.19 is: 4,321.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.36 : 7,067.57 = 3,132.19 : x
  2. Step 2: Convert to fraction form
    5,122.36/7,067.57 = 3,132.19/x
  3. Step 3: Cross multiply
    5,122.36x = 7,067.57 × 3,132.19
  4. Step 4: Simplify right side
    5,122.36x = 22,136,972.08
  5. Step 5: Solve for x
    x = 22,136,972.08/5,122.36
  6. Step 6: Final answer
    x = 4,321.64

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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.