Home / 2,933.20-4,399.79-986.77

Finding the Fourth Proportional to 2,933.20, 4,399.79 and 986.77

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Solution

The fourth proportional to 2,933.20, 4,399.79 and 986.77 is: 1,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,933.20 : 4,399.79 = 986.77 : x
  2. Step 2: Convert to fraction form
    2,933.20/4,399.79 = 986.77/x
  3. Step 3: Cross multiply
    2,933.20x = 4,399.79 × 986.77
  4. Step 4: Simplify right side
    2,933.20x = 4,341,562.15
  5. Step 5: Solve for x
    x = 4,341,562.15/2,933.20
  6. Step 6: Final answer
    x = 1,480.15

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1.5x scale

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.