Home / 7,861.37-11,784.62-2,927.66

Finding the Fourth Proportional to 7,861.37, 11,784.62 and 2,927.66

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Solution

The fourth proportional to 7,861.37, 11,784.62 and 2,927.66 is: 4,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.37 : 11,784.62 = 2,927.66 : x
  2. Step 2: Convert to fraction form
    7,861.37/11,784.62 = 2,927.66/x
  3. Step 3: Cross multiply
    7,861.37x = 11,784.62 × 2,927.66
  4. Step 4: Simplify right side
    7,861.37x = 34,501,308.99
  5. Step 5: Solve for x
    x = 34,501,308.99/7,861.37
  6. Step 6: Final answer
    x = 4,388.72

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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.