Home / 5,190.87-7,163.37-2,952.74

Finding the Fourth Proportional to 5,190.87, 7,163.37 and 2,952.74

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Solution

The fourth proportional to 5,190.87, 7,163.37 and 2,952.74 is: 4,074.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.87 : 7,163.37 = 2,952.74 : x
  2. Step 2: Convert to fraction form
    5,190.87/7,163.37 = 2,952.74/x
  3. Step 3: Cross multiply
    5,190.87x = 7,163.37 × 2,952.74
  4. Step 4: Simplify right side
    5,190.87x = 21,151,569.13
  5. Step 5: Solve for x
    x = 21,151,569.13/5,190.87
  6. Step 6: Final answer
    x = 4,074.76

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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.