Home / 1,206.11-1,812.87-1,045.73

Finding the Fourth Proportional to 1,206.11, 1,812.87 and 1,045.73

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Solution

The fourth proportional to 1,206.11, 1,812.87 and 1,045.73 is: 1,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.11 : 1,812.87 = 1,045.73 : x
  2. Step 2: Convert to fraction form
    1,206.11/1,812.87 = 1,045.73/x
  3. Step 3: Cross multiply
    1,206.11x = 1,812.87 × 1,045.73
  4. Step 4: Simplify right side
    1,206.11x = 1,895,772.55
  5. Step 5: Solve for x
    x = 1,895,772.55/1,206.11
  6. Step 6: Final answer
    x = 1,571.81

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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.