Home / 4,142.50-5,716.77-2,279.62

Finding the Fourth Proportional to 4,142.50, 5,716.77 and 2,279.62

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Solution

The fourth proportional to 4,142.50, 5,716.77 and 2,279.62 is: 3,145.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.50 : 5,716.77 = 2,279.62 : x
  2. Step 2: Convert to fraction form
    4,142.50/5,716.77 = 2,279.62/x
  3. Step 3: Cross multiply
    4,142.50x = 5,716.77 × 2,279.62
  4. Step 4: Simplify right side
    4,142.50x = 13,032,063.23
  5. Step 5: Solve for x
    x = 13,032,063.23/4,142.50
  6. Step 6: Final answer
    x = 3,145.94

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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.