Home / 2,819.28-4,226.52-1,089.12

Finding the Fourth Proportional to 2,819.28, 4,226.52 and 1,089.12

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Solution

The fourth proportional to 2,819.28, 4,226.52 and 1,089.12 is: 1,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.28 : 4,226.52 = 1,089.12 : x
  2. Step 2: Convert to fraction form
    2,819.28/4,226.52 = 1,089.12/x
  3. Step 3: Cross multiply
    2,819.28x = 4,226.52 × 1,089.12
  4. Step 4: Simplify right side
    2,819.28x = 4,603,187.46
  5. Step 5: Solve for x
    x = 4,603,187.46/2,819.28
  6. Step 6: Final answer
    x = 1,632.75

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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.