Home / 3,218.65-4,830.54-2,761.81

Finding the Fourth Proportional to 3,218.65, 4,830.54 and 2,761.81

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Solution

The fourth proportional to 3,218.65, 4,830.54 and 2,761.81 is: 4,144.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.65 : 4,830.54 = 2,761.81 : x
  2. Step 2: Convert to fraction form
    3,218.65/4,830.54 = 2,761.81/x
  3. Step 3: Cross multiply
    3,218.65x = 4,830.54 × 2,761.81
  4. Step 4: Simplify right side
    3,218.65x = 13,341,033.68
  5. Step 5: Solve for x
    x = 13,341,033.68/3,218.65
  6. Step 6: Final answer
    x = 4,144.92

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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.