Home / 3,813.24-5,719.86-1,621.38

Finding the Fourth Proportional to 3,813.24, 5,719.86 and 1,621.38

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Solution

The fourth proportional to 3,813.24, 5,719.86 and 1,621.38 is: 2,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.24 : 5,719.86 = 1,621.38 : x
  2. Step 2: Convert to fraction form
    3,813.24/5,719.86 = 1,621.38/x
  3. Step 3: Cross multiply
    3,813.24x = 5,719.86 × 1,621.38
  4. Step 4: Simplify right side
    3,813.24x = 9,274,066.61
  5. Step 5: Solve for x
    x = 9,274,066.61/3,813.24
  6. Step 6: Final answer
    x = 2,432.07

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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.