Home / 3,821.12-5,274.08-2,329.86

Finding the Fourth Proportional to 3,821.12, 5,274.08 and 2,329.86

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Solution

The fourth proportional to 3,821.12, 5,274.08 and 2,329.86 is: 3,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.12 : 5,274.08 = 2,329.86 : x
  2. Step 2: Convert to fraction form
    3,821.12/5,274.08 = 2,329.86/x
  3. Step 3: Cross multiply
    3,821.12x = 5,274.08 × 2,329.86
  4. Step 4: Simplify right side
    3,821.12x = 12,287,878.22
  5. Step 5: Solve for x
    x = 12,287,878.22/3,821.12
  6. Step 6: Final answer
    x = 3,215.78

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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.