Home / 7,428.92-11,147.83-2,748.13

Finding the Fourth Proportional to 7,428.92, 11,147.83 and 2,748.13

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Solution

The fourth proportional to 7,428.92, 11,147.83 and 2,748.13 is: 4,123.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.92 : 11,147.83 = 2,748.13 : x
  2. Step 2: Convert to fraction form
    7,428.92/11,147.83 = 2,748.13/x
  3. Step 3: Cross multiply
    7,428.92x = 11,147.83 × 2,748.13
  4. Step 4: Simplify right side
    7,428.92x = 30,635,651.32
  5. Step 5: Solve for x
    x = 30,635,651.32/7,428.92
  6. Step 6: Final answer
    x = 4,123.84

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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.