Home / 2,082.68-3,124.04-621.84

Finding the Fourth Proportional to 2,082.68, 3,124.04 and 621.84

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Solution

The fourth proportional to 2,082.68, 3,124.04 and 621.84 is: 932.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.68 : 3,124.04 = 621.84 : x
  2. Step 2: Convert to fraction form
    2,082.68/3,124.04 = 621.84/x
  3. Step 3: Cross multiply
    2,082.68x = 3,124.04 × 621.84
  4. Step 4: Simplify right side
    2,082.68x = 1,942,661.64
  5. Step 5: Solve for x
    x = 1,942,661.64/2,082.68
  6. Step 6: Final answer
    x = 932.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.