Home / 7,190.09-9,921.52-4,046.21

Finding the Fourth Proportional to 7,190.09, 9,921.52 and 4,046.21

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Solution

The fourth proportional to 7,190.09, 9,921.52 and 4,046.21 is: 5,583.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190.09 : 9,921.52 = 4,046.21 : x
  2. Step 2: Convert to fraction form
    7,190.09/9,921.52 = 4,046.21/x
  3. Step 3: Cross multiply
    7,190.09x = 9,921.52 × 4,046.21
  4. Step 4: Simplify right side
    7,190.09x = 40,144,553.44
  5. Step 5: Solve for x
    x = 40,144,553.44/7,190.09
  6. Step 6: Final answer
    x = 5,583.32

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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.