Home / 5,311.87-7,330.57-2,922.03

Finding the Fourth Proportional to 5,311.87, 7,330.57 and 2,922.03

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Solution

The fourth proportional to 5,311.87, 7,330.57 and 2,922.03 is: 4,032.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.87 : 7,330.57 = 2,922.03 : x
  2. Step 2: Convert to fraction form
    5,311.87/7,330.57 = 2,922.03/x
  3. Step 3: Cross multiply
    5,311.87x = 7,330.57 × 2,922.03
  4. Step 4: Simplify right side
    5,311.87x = 21,420,145.46
  5. Step 5: Solve for x
    x = 21,420,145.46/5,311.87
  6. Step 6: Final answer
    x = 4,032.51

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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.