Home / 2,172.08-3,259.48-1,249.44

Finding the Fourth Proportional to 2,172.08, 3,259.48 and 1,249.44

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Solution

The fourth proportional to 2,172.08, 3,259.48 and 1,249.44 is: 1,874.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.08 : 3,259.48 = 1,249.44 : x
  2. Step 2: Convert to fraction form
    2,172.08/3,259.48 = 1,249.44/x
  3. Step 3: Cross multiply
    2,172.08x = 3,259.48 × 1,249.44
  4. Step 4: Simplify right side
    2,172.08x = 4,072,508.39
  5. Step 5: Solve for x
    x = 4,072,508.39/2,172.08
  6. Step 6: Final answer
    x = 1,874.94

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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.