Home / 5,231.16-7,218.96-2,993.76

Finding the Fourth Proportional to 5,231.16, 7,218.96 and 2,993.76

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Solution

The fourth proportional to 5,231.16, 7,218.96 and 2,993.76 is: 4,131.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.16 : 7,218.96 = 2,993.76 : x
  2. Step 2: Convert to fraction form
    5,231.16/7,218.96 = 2,993.76/x
  3. Step 3: Cross multiply
    5,231.16x = 7,218.96 × 2,993.76
  4. Step 4: Simplify right side
    5,231.16x = 21,611,833.69
  5. Step 5: Solve for x
    x = 21,611,833.69/5,231.16
  6. Step 6: Final answer
    x = 4,131.37

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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.