Home / 7,990.33-11,977.40-3,824.23

Finding the Fourth Proportional to 7,990.33, 11,977.40 and 3,824.23

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Solution

The fourth proportional to 7,990.33, 11,977.40 and 3,824.23 is: 5,732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.33 : 11,977.40 = 3,824.23 : x
  2. Step 2: Convert to fraction form
    7,990.33/11,977.40 = 3,824.23/x
  3. Step 3: Cross multiply
    7,990.33x = 11,977.40 × 3,824.23
  4. Step 4: Simplify right side
    7,990.33x = 45,804,332.40
  5. Step 5: Solve for x
    x = 45,804,332.40/7,990.33
  6. Step 6: Final answer
    x = 5,732.47

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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.