Home / 5,772.38-7,965.88-3,119.79

Finding the Fourth Proportional to 5,772.38, 7,965.88 and 3,119.79

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Solution

The fourth proportional to 5,772.38, 7,965.88 and 3,119.79 is: 4,305.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,772.38 : 7,965.88 = 3,119.79 : x
  2. Step 2: Convert to fraction form
    5,772.38/7,965.88 = 3,119.79/x
  3. Step 3: Cross multiply
    5,772.38x = 7,965.88 × 3,119.79
  4. Step 4: Simplify right side
    5,772.38x = 24,851,872.77
  5. Step 5: Solve for x
    x = 24,851,872.77/5,772.38
  6. Step 6: Final answer
    x = 4,305.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.