Home / 2,312.21-3,468.55-851.02

Finding the Fourth Proportional to 2,312.21, 3,468.55 and 851.02

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Solution

The fourth proportional to 2,312.21, 3,468.55 and 851.02 is: 1,276.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.21 : 3,468.55 = 851.02 : x
  2. Step 2: Convert to fraction form
    2,312.21/3,468.55 = 851.02/x
  3. Step 3: Cross multiply
    2,312.21x = 3,468.55 × 851.02
  4. Step 4: Simplify right side
    2,312.21x = 2,951,783.82
  5. Step 5: Solve for x
    x = 2,951,783.82/2,312.21
  6. Step 6: Final answer
    x = 1,276.61

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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.