Home / 7,990.59-11,981.67-3,546.33

Finding the Fourth Proportional to 7,990.59, 11,981.67 and 3,546.33

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Solution

The fourth proportional to 7,990.59, 11,981.67 and 3,546.33 is: 5,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.59 : 11,981.67 = 3,546.33 : x
  2. Step 2: Convert to fraction form
    7,990.59/11,981.67 = 3,546.33/x
  3. Step 3: Cross multiply
    7,990.59x = 11,981.67 × 3,546.33
  4. Step 4: Simplify right side
    7,990.59x = 42,490,941.36
  5. Step 5: Solve for x
    x = 42,490,941.36/7,990.59
  6. Step 6: Final answer
    x = 5,317.62

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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.