Home / 2,152.52-3,226.36-919.30

Finding the Fourth Proportional to 2,152.52, 3,226.36 and 919.30

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Solution

The fourth proportional to 2,152.52, 3,226.36 and 919.30 is: 1,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.52 : 3,226.36 = 919.30 : x
  2. Step 2: Convert to fraction form
    2,152.52/3,226.36 = 919.30/x
  3. Step 3: Cross multiply
    2,152.52x = 3,226.36 × 919.30
  4. Step 4: Simplify right side
    2,152.52x = 2,965,992.75
  5. Step 5: Solve for x
    x = 2,965,992.75/2,152.52
  6. Step 6: Final answer
    x = 1,377.92

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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.