Home / 3,455.50-5,186.36-2,342.22

Finding the Fourth Proportional to 3,455.50, 5,186.36 and 2,342.22

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Solution

The fourth proportional to 3,455.50, 5,186.36 and 2,342.22 is: 3,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.50 : 5,186.36 = 2,342.22 : x
  2. Step 2: Convert to fraction form
    3,455.50/5,186.36 = 2,342.22/x
  3. Step 3: Cross multiply
    3,455.50x = 5,186.36 × 2,342.22
  4. Step 4: Simplify right side
    3,455.50x = 12,147,601.97
  5. Step 5: Solve for x
    x = 12,147,601.97/3,455.50
  6. Step 6: Final answer
    x = 3,515.44

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Double scale
Find fourth proportional to 3,456.50, 5,187.86 and 2,343.22
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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.