Home / 3,074.89-4,243.18-1,815.66

Finding the Fourth Proportional to 3,074.89, 4,243.18 and 1,815.66

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Solution

The fourth proportional to 3,074.89, 4,243.18 and 1,815.66 is: 2,505.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.89 : 4,243.18 = 1,815.66 : x
  2. Step 2: Convert to fraction form
    3,074.89/4,243.18 = 1,815.66/x
  3. Step 3: Cross multiply
    3,074.89x = 4,243.18 × 1,815.66
  4. Step 4: Simplify right side
    3,074.89x = 7,704,154.02
  5. Step 5: Solve for x
    x = 7,704,154.02/3,074.89
  6. Step 6: Final answer
    x = 2,505.51

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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.