Home / 5,190.70-7,163.40-2,922.82

Finding the Fourth Proportional to 5,190.70, 7,163.40 and 2,922.82

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Solution

The fourth proportional to 5,190.70, 7,163.40 and 2,922.82 is: 4,033.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.70 : 7,163.40 = 2,922.82 : x
  2. Step 2: Convert to fraction form
    5,190.70/7,163.40 = 2,922.82/x
  3. Step 3: Cross multiply
    5,190.70x = 7,163.40 × 2,922.82
  4. Step 4: Simplify right side
    5,190.70x = 20,937,303.57
  5. Step 5: Solve for x
    x = 20,937,303.57/5,190.70
  6. Step 6: Final answer
    x = 4,033.62

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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.