Home / 3,815.90-5,723.08-1,350.80

Finding the Fourth Proportional to 3,815.90, 5,723.08 and 1,350.80

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Solution

The fourth proportional to 3,815.90, 5,723.08 and 1,350.80 is: 2,025.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.90 : 5,723.08 = 1,350.80 : x
  2. Step 2: Convert to fraction form
    3,815.90/5,723.08 = 1,350.80/x
  3. Step 3: Cross multiply
    3,815.90x = 5,723.08 × 1,350.80
  4. Step 4: Simplify right side
    3,815.90x = 7,730,736.46
  5. Step 5: Solve for x
    x = 7,730,736.46/3,815.90
  6. Step 6: Final answer
    x = 2,025.93

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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.