Home / 4,715.92-7,074.61-1,428.23

Finding the Fourth Proportional to 4,715.92, 7,074.61 and 1,428.23

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Solution

The fourth proportional to 4,715.92, 7,074.61 and 1,428.23 is: 2,142.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.92 : 7,074.61 = 1,428.23 : x
  2. Step 2: Convert to fraction form
    4,715.92/7,074.61 = 1,428.23/x
  3. Step 3: Cross multiply
    4,715.92x = 7,074.61 × 1,428.23
  4. Step 4: Simplify right side
    4,715.92x = 10,104,127.73
  5. Step 5: Solve for x
    x = 10,104,127.73/4,715.92
  6. Step 6: Final answer
    x = 2,142.56

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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.