Home / 3,173.48-4,381.44-2,178.44

Finding the Fourth Proportional to 3,173.48, 4,381.44 and 2,178.44

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Solution

The fourth proportional to 3,173.48, 4,381.44 and 2,178.44 is: 3,007.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.48 : 4,381.44 = 2,178.44 : x
  2. Step 2: Convert to fraction form
    3,173.48/4,381.44 = 2,178.44/x
  3. Step 3: Cross multiply
    3,173.48x = 4,381.44 × 2,178.44
  4. Step 4: Simplify right side
    3,173.48x = 9,544,704.15
  5. Step 5: Solve for x
    x = 9,544,704.15/3,173.48
  6. Step 6: Final answer
    x = 3,007.65

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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.