Home / 3,173.24-4,379.46-1,914.78

Finding the Fourth Proportional to 3,173.24, 4,379.46 and 1,914.78

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Solution

The fourth proportional to 3,173.24, 4,379.46 and 1,914.78 is: 2,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.24 : 4,379.46 = 1,914.78 : x
  2. Step 2: Convert to fraction form
    3,173.24/4,379.46 = 1,914.78/x
  3. Step 3: Cross multiply
    3,173.24x = 4,379.46 × 1,914.78
  4. Step 4: Simplify right side
    3,173.24x = 8,385,702.42
  5. Step 5: Solve for x
    x = 8,385,702.42/3,173.24
  6. Step 6: Final answer
    x = 2,642.63

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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.