Home / 3,821.61-5,272.20-2,329.32

Finding the Fourth Proportional to 3,821.61, 5,272.20 and 2,329.32

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Solution

The fourth proportional to 3,821.61, 5,272.20 and 2,329.32 is: 3,213.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.61 : 5,272.20 = 2,329.32 : x
  2. Step 2: Convert to fraction form
    3,821.61/5,272.20 = 2,329.32/x
  3. Step 3: Cross multiply
    3,821.61x = 5,272.20 × 2,329.32
  4. Step 4: Simplify right side
    3,821.61x = 12,280,640.90
  5. Step 5: Solve for x
    x = 12,280,640.90/3,821.61
  6. Step 6: Final answer
    x = 3,213.47

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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.