Home / 1,180.47-1,766.91-1,069.71

Finding the Fourth Proportional to 1,180.47, 1,766.91 and 1,069.71

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Solution

The fourth proportional to 1,180.47, 1,766.91 and 1,069.71 is: 1,601.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.47 : 1,766.91 = 1,069.71 : x
  2. Step 2: Convert to fraction form
    1,180.47/1,766.91 = 1,069.71/x
  3. Step 3: Cross multiply
    1,180.47x = 1,766.91 × 1,069.71
  4. Step 4: Simplify right side
    1,180.47x = 1,890,078.68
  5. Step 5: Solve for x
    x = 1,890,078.68/1,180.47
  6. Step 6: Final answer
    x = 1,601.12

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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.