Home / 5,163.36-7,131.24-3,998.52

Finding the Fourth Proportional to 5,163.36, 7,131.24 and 3,998.52

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Solution

The fourth proportional to 5,163.36, 7,131.24 and 3,998.52 is: 5,522.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,163.36 : 7,131.24 = 3,998.52 : x
  2. Step 2: Convert to fraction form
    5,163.36/7,131.24 = 3,998.52/x
  3. Step 3: Cross multiply
    5,163.36x = 7,131.24 × 3,998.52
  4. Step 4: Simplify right side
    5,163.36x = 28,514,405.76
  5. Step 5: Solve for x
    x = 28,514,405.76/5,163.36
  6. Step 6: Final answer
    x = 5,522.45

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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.