Home / 3,821.27-5,279.92-2,756.93

Finding the Fourth Proportional to 3,821.27, 5,279.92 and 2,756.93

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Solution

The fourth proportional to 3,821.27, 5,279.92 and 2,756.93 is: 3,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.27 : 5,279.92 = 2,756.93 : x
  2. Step 2: Convert to fraction form
    3,821.27/5,279.92 = 2,756.93/x
  3. Step 3: Cross multiply
    3,821.27x = 5,279.92 × 2,756.93
  4. Step 4: Simplify right side
    3,821.27x = 14,556,336.55
  5. Step 5: Solve for x
    x = 14,556,336.55/3,821.27
  6. Step 6: Final answer
    x = 3,809.30

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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.