Home / 2,827.31-4,234.68-1,728.34

Finding the Fourth Proportional to 2,827.31, 4,234.68 and 1,728.34

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Solution

The fourth proportional to 2,827.31, 4,234.68 and 1,728.34 is: 2,588.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.31 : 4,234.68 = 1,728.34 : x
  2. Step 2: Convert to fraction form
    2,827.31/4,234.68 = 1,728.34/x
  3. Step 3: Cross multiply
    2,827.31x = 4,234.68 × 1,728.34
  4. Step 4: Simplify right side
    2,827.31x = 7,318,956.24
  5. Step 5: Solve for x
    x = 7,318,956.24/2,827.31
  6. Step 6: Final answer
    x = 2,588.67

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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.