Home / 4,767.58-7,139.19-2,821.18

Finding the Fourth Proportional to 4,767.58, 7,139.19 and 2,821.18

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Solution

The fourth proportional to 4,767.58, 7,139.19 and 2,821.18 is: 4,224.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,767.58 : 7,139.19 = 2,821.18 : x
  2. Step 2: Convert to fraction form
    4,767.58/7,139.19 = 2,821.18/x
  3. Step 3: Cross multiply
    4,767.58x = 7,139.19 × 2,821.18
  4. Step 4: Simplify right side
    4,767.58x = 20,140,940.04
  5. Step 5: Solve for x
    x = 20,140,940.04/4,767.58
  6. Step 6: Final answer
    x = 4,224.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.