Home / 7,428.19-11,142.49-2,162.99

Finding the Fourth Proportional to 7,428.19, 11,142.49 and 2,162.99

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Solution

The fourth proportional to 7,428.19, 11,142.49 and 2,162.99 is: 3,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.19 : 11,142.49 = 2,162.99 : x
  2. Step 2: Convert to fraction form
    7,428.19/11,142.49 = 2,162.99/x
  3. Step 3: Cross multiply
    7,428.19x = 11,142.49 × 2,162.99
  4. Step 4: Simplify right side
    7,428.19x = 24,101,094.45
  5. Step 5: Solve for x
    x = 24,101,094.45/7,428.19
  6. Step 6: Final answer
    x = 3,244.54

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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.