Home / 7,981.45-11,979.55-4,035.48

Finding the Fourth Proportional to 7,981.45, 11,979.55 and 4,035.48

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Solution

The fourth proportional to 7,981.45, 11,979.55 and 4,035.48 is: 6,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981.45 : 11,979.55 = 4,035.48 : x
  2. Step 2: Convert to fraction form
    7,981.45/11,979.55 = 4,035.48/x
  3. Step 3: Cross multiply
    7,981.45x = 11,979.55 × 4,035.48
  4. Step 4: Simplify right side
    7,981.45x = 48,343,234.43
  5. Step 5: Solve for x
    x = 48,343,234.43/7,981.45
  6. Step 6: Final answer
    x = 6,056.95

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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.