Home / 7,990.81-11,981.64-2,723.17

Finding the Fourth Proportional to 7,990.81, 11,981.64 and 2,723.17

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Solution

The fourth proportional to 7,990.81, 11,981.64 and 2,723.17 is: 4,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.81 : 11,981.64 = 2,723.17 : x
  2. Step 2: Convert to fraction form
    7,990.81/11,981.64 = 2,723.17/x
  3. Step 3: Cross multiply
    7,990.81x = 11,981.64 × 2,723.17
  4. Step 4: Simplify right side
    7,990.81x = 32,628,042.60
  5. Step 5: Solve for x
    x = 32,628,042.60/7,990.81
  6. Step 6: Final answer
    x = 4,083.20

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1.5x scale

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.