Home / 3,995.22-5,513.40-2,317.60

Finding the Fourth Proportional to 3,995.22, 5,513.40 and 2,317.60

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Solution

The fourth proportional to 3,995.22, 5,513.40 and 2,317.60 is: 3,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.22 : 5,513.40 = 2,317.60 : x
  2. Step 2: Convert to fraction form
    3,995.22/5,513.40 = 2,317.60/x
  3. Step 3: Cross multiply
    3,995.22x = 5,513.40 × 2,317.60
  4. Step 4: Simplify right side
    3,995.22x = 12,777,855.84
  5. Step 5: Solve for x
    x = 12,777,855.84/3,995.22
  6. Step 6: Final answer
    x = 3,198.29

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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.