Home / 3,764.28-5,647.20-1,299.20

Finding the Fourth Proportional to 3,764.28, 5,647.20 and 1,299.20

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Solution

The fourth proportional to 3,764.28, 5,647.20 and 1,299.20 is: 1,949.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.28 : 5,647.20 = 1,299.20 : x
  2. Step 2: Convert to fraction form
    3,764.28/5,647.20 = 1,299.20/x
  3. Step 3: Cross multiply
    3,764.28x = 5,647.20 × 1,299.20
  4. Step 4: Simplify right side
    3,764.28x = 7,336,842.24
  5. Step 5: Solve for x
    x = 7,336,842.24/3,764.28
  6. Step 6: Final answer
    x = 1,949.07

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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.