Home / 2,312.28-3,467.50-851.09

Finding the Fourth Proportional to 2,312.28, 3,467.50 and 851.09

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Solution

The fourth proportional to 2,312.28, 3,467.50 and 851.09 is: 1,276.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.28 : 3,467.50 = 851.09 : x
  2. Step 2: Convert to fraction form
    2,312.28/3,467.50 = 851.09/x
  3. Step 3: Cross multiply
    2,312.28x = 3,467.50 × 851.09
  4. Step 4: Simplify right side
    2,312.28x = 2,951,135.11
  5. Step 5: Solve for x
    x = 2,951,135.11/2,312.28
  6. Step 6: Final answer
    x = 1,276.29

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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.