Home / 4,811.33-6,639.71-2,821.91

Finding the Fourth Proportional to 4,811.33, 6,639.71 and 2,821.91

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Solution

The fourth proportional to 4,811.33, 6,639.71 and 2,821.91 is: 3,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.33 : 6,639.71 = 2,821.91 : x
  2. Step 2: Convert to fraction form
    4,811.33/6,639.71 = 2,821.91/x
  3. Step 3: Cross multiply
    4,811.33x = 6,639.71 × 2,821.91
  4. Step 4: Simplify right side
    4,811.33x = 18,736,616.74
  5. Step 5: Solve for x
    x = 18,736,616.74/4,811.33
  6. Step 6: Final answer
    x = 3,894.27

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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.