Home / 3,960.42-5,941.30-1,621.68

Finding the Fourth Proportional to 3,960.42, 5,941.30 and 1,621.68

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Solution

The fourth proportional to 3,960.42, 5,941.30 and 1,621.68 is: 2,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.42 : 5,941.30 = 1,621.68 : x
  2. Step 2: Convert to fraction form
    3,960.42/5,941.30 = 1,621.68/x
  3. Step 3: Cross multiply
    3,960.42x = 5,941.30 × 1,621.68
  4. Step 4: Simplify right side
    3,960.42x = 9,634,887.38
  5. Step 5: Solve for x
    x = 9,634,887.38/3,960.42
  6. Step 6: Final answer
    x = 2,432.79

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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.