Home / 5,121.73-7,686.02-2,200.74

Finding the Fourth Proportional to 5,121.73, 7,686.02 and 2,200.74

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Solution

The fourth proportional to 5,121.73, 7,686.02 and 2,200.74 is: 3,302.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.73 : 7,686.02 = 2,200.74 : x
  2. Step 2: Convert to fraction form
    5,121.73/7,686.02 = 2,200.74/x
  3. Step 3: Cross multiply
    5,121.73x = 7,686.02 × 2,200.74
  4. Step 4: Simplify right side
    5,121.73x = 16,914,931.65
  5. Step 5: Solve for x
    x = 16,914,931.65/5,121.73
  6. Step 6: Final answer
    x = 3,302.58

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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.