Home / 7,922.80-11,884.74-2,991.52

Finding the Fourth Proportional to 7,922.80, 11,884.74 and 2,991.52

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Solution

The fourth proportional to 7,922.80, 11,884.74 and 2,991.52 is: 4,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.80 : 11,884.74 = 2,991.52 : x
  2. Step 2: Convert to fraction form
    7,922.80/11,884.74 = 2,991.52/x
  3. Step 3: Cross multiply
    7,922.80x = 11,884.74 × 2,991.52
  4. Step 4: Simplify right side
    7,922.80x = 35,553,437.40
  5. Step 5: Solve for x
    x = 35,553,437.40/7,922.80
  6. Step 6: Final answer
    x = 4,487.48

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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.