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Finding the Fourth Proportional to 7,990.92, 11,995.02 and 3,377.16

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Solution

The fourth proportional to 7,990.92, 11,995.02 and 3,377.16 is: 5,069.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.92 : 11,995.02 = 3,377.16 : x
  2. Step 2: Convert to fraction form
    7,990.92/11,995.02 = 3,377.16/x
  3. Step 3: Cross multiply
    7,990.92x = 11,995.02 × 3,377.16
  4. Step 4: Simplify right side
    7,990.92x = 40,509,101.74
  5. Step 5: Solve for x
    x = 40,509,101.74/7,990.92
  6. Step 6: Final answer
    x = 5,069.39

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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.