Home / 3,531.15-5,297.87-2,127.09

Finding the Fourth Proportional to 3,531.15, 5,297.87 and 2,127.09

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Solution

The fourth proportional to 3,531.15, 5,297.87 and 2,127.09 is: 3,191.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.15 : 5,297.87 = 2,127.09 : x
  2. Step 2: Convert to fraction form
    3,531.15/5,297.87 = 2,127.09/x
  3. Step 3: Cross multiply
    3,531.15x = 5,297.87 × 2,127.09
  4. Step 4: Simplify right side
    3,531.15x = 11,269,046.30
  5. Step 5: Solve for x
    x = 11,269,046.30/3,531.15
  6. Step 6: Final answer
    x = 3,191.32

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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.