Home / 7,628.79-11,443.05-2,082.11

Finding the Fourth Proportional to 7,628.79, 11,443.05 and 2,082.11

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Solution

The fourth proportional to 7,628.79, 11,443.05 and 2,082.11 is: 3,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.79 : 11,443.05 = 2,082.11 : x
  2. Step 2: Convert to fraction form
    7,628.79/11,443.05 = 2,082.11/x
  3. Step 3: Cross multiply
    7,628.79x = 11,443.05 × 2,082.11
  4. Step 4: Simplify right side
    7,628.79x = 23,825,650.46
  5. Step 5: Solve for x
    x = 23,825,650.46/7,628.79
  6. Step 6: Final answer
    x = 3,123.12

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1.5x scale

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.