Home / 2,768.40-3,819.96-1,589.25

Finding the Fourth Proportional to 2,768.40, 3,819.96 and 1,589.25

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Solution

The fourth proportional to 2,768.40, 3,819.96 and 1,589.25 is: 2,192.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.40 : 3,819.96 = 1,589.25 : x
  2. Step 2: Convert to fraction form
    2,768.40/3,819.96 = 1,589.25/x
  3. Step 3: Cross multiply
    2,768.40x = 3,819.96 × 1,589.25
  4. Step 4: Simplify right side
    2,768.40x = 6,070,871.43
  5. Step 5: Solve for x
    x = 6,070,871.43/2,768.40
  6. Step 6: Final answer
    x = 2,192.92

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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.