Home / 2,082.03-3,123.20-621.24

Finding the Fourth Proportional to 2,082.03, 3,123.20 and 621.24

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Solution

The fourth proportional to 2,082.03, 3,123.20 and 621.24 is: 931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.03 : 3,123.20 = 621.24 : x
  2. Step 2: Convert to fraction form
    2,082.03/3,123.20 = 621.24/x
  3. Step 3: Cross multiply
    2,082.03x = 3,123.20 × 621.24
  4. Step 4: Simplify right side
    2,082.03x = 1,940,256.77
  5. Step 5: Solve for x
    x = 1,940,256.77/2,082.03
  6. Step 6: Final answer
    x = 931.91

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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.