Home / 7,080.24-9,770.79-3,893.61

Finding the Fourth Proportional to 7,080.24, 9,770.79 and 3,893.61

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Solution

The fourth proportional to 7,080.24, 9,770.79 and 3,893.61 is: 5,373.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.24 : 9,770.79 = 3,893.61 : x
  2. Step 2: Convert to fraction form
    7,080.24/9,770.79 = 3,893.61/x
  3. Step 3: Cross multiply
    7,080.24x = 9,770.79 × 3,893.61
  4. Step 4: Simplify right side
    7,080.24x = 38,043,645.65
  5. Step 5: Solve for x
    x = 38,043,645.65/7,080.24
  6. Step 6: Final answer
    x = 5,373.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.