Home / 2,933.15-4,399.65-1,288.71

Finding the Fourth Proportional to 2,933.15, 4,399.65 and 1,288.71

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Solution

The fourth proportional to 2,933.15, 4,399.65 and 1,288.71 is: 1,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,933.15 : 4,399.65 = 1,288.71 : x
  2. Step 2: Convert to fraction form
    2,933.15/4,399.65 = 1,288.71/x
  3. Step 3: Cross multiply
    2,933.15x = 4,399.65 × 1,288.71
  4. Step 4: Simplify right side
    2,933.15x = 5,669,872.95
  5. Step 5: Solve for x
    x = 5,669,872.95/2,933.15
  6. Step 6: Final answer
    x = 1,933.04

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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.