Home / 3,431.80-4,733.50-2,722.65

Finding the Fourth Proportional to 3,431.80, 4,733.50 and 2,722.65

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Solution

The fourth proportional to 3,431.80, 4,733.50 and 2,722.65 is: 3,755.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.80 : 4,733.50 = 2,722.65 : x
  2. Step 2: Convert to fraction form
    3,431.80/4,733.50 = 2,722.65/x
  3. Step 3: Cross multiply
    3,431.80x = 4,733.50 × 2,722.65
  4. Step 4: Simplify right side
    3,431.80x = 12,887,663.78
  5. Step 5: Solve for x
    x = 12,887,663.78/3,431.80
  6. Step 6: Final answer
    x = 3,755.37

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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.