Home / 2,621.64-3,933.81-1,451.43

Finding the Fourth Proportional to 2,621.64, 3,933.81 and 1,451.43

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Solution

The fourth proportional to 2,621.64, 3,933.81 and 1,451.43 is: 2,177.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.64 : 3,933.81 = 1,451.43 : x
  2. Step 2: Convert to fraction form
    2,621.64/3,933.81 = 1,451.43/x
  3. Step 3: Cross multiply
    2,621.64x = 3,933.81 × 1,451.43
  4. Step 4: Simplify right side
    2,621.64x = 5,709,649.85
  5. Step 5: Solve for x
    x = 5,709,649.85/2,621.64
  6. Step 6: Final answer
    x = 2,177.89

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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.