Home / 5,234.40-7,849.20-2,311.20

Finding the Fourth Proportional to 5,234.40, 7,849.20 and 2,311.20

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Solution

The fourth proportional to 5,234.40, 7,849.20 and 2,311.20 is: 3,465.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,234.40 : 7,849.20 = 2,311.20 : x
  2. Step 2: Convert to fraction form
    5,234.40/7,849.20 = 2,311.20/x
  3. Step 3: Cross multiply
    5,234.40x = 7,849.20 × 2,311.20
  4. Step 4: Simplify right side
    5,234.40x = 18,141,071.04
  5. Step 5: Solve for x
    x = 18,141,071.04/5,234.40
  6. Step 6: Final answer
    x = 3,465.74

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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.