Home / 3,490.08-5,234.76-2,187.60

Finding the Fourth Proportional to 3,490.08, 5,234.76 and 2,187.60

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Solution

The fourth proportional to 3,490.08, 5,234.76 and 2,187.60 is: 3,281.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.08 : 5,234.76 = 2,187.60 : x
  2. Step 2: Convert to fraction form
    3,490.08/5,234.76 = 2,187.60/x
  3. Step 3: Cross multiply
    3,490.08x = 5,234.76 × 2,187.60
  4. Step 4: Simplify right side
    3,490.08x = 11,451,560.98
  5. Step 5: Solve for x
    x = 11,451,560.98/3,490.08
  6. Step 6: Final answer
    x = 3,281.17

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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.