Home / 7,276.61-10,919.69-3,992

Finding the Fourth Proportional to 7,276.61, 10,919.69 and 3,992

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Solution

The fourth proportional to 7,276.61, 10,919.69 and 3,992 is: 5,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.61 : 10,919.69 = 3,992 : x
  2. Step 2: Convert to fraction form
    7,276.61/10,919.69 = 3,992/x
  3. Step 3: Cross multiply
    7,276.61x = 10,919.69 × 3,992
  4. Step 4: Simplify right side
    7,276.61x = 43,591,402.48
  5. Step 5: Solve for x
    x = 43,591,402.48/7,276.61
  6. Step 6: Final answer
    x = 5,990.62

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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.