Home / 2,118.24-3,178.80-1,144.44

Finding the Fourth Proportional to 2,118.24, 3,178.80 and 1,144.44

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Solution

The fourth proportional to 2,118.24, 3,178.80 and 1,144.44 is: 1,717.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.24 : 3,178.80 = 1,144.44 : x
  2. Step 2: Convert to fraction form
    2,118.24/3,178.80 = 1,144.44/x
  3. Step 3: Cross multiply
    2,118.24x = 3,178.80 × 1,144.44
  4. Step 4: Simplify right side
    2,118.24x = 3,637,945.87
  5. Step 5: Solve for x
    x = 3,637,945.87/2,118.24
  6. Step 6: Final answer
    x = 1,717.44

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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.