Home / 1,781.75-2,668.95-1,433.21

Finding the Fourth Proportional to 1,781.75, 2,668.95 and 1,433.21

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Solution

The fourth proportional to 1,781.75, 2,668.95 and 1,433.21 is: 2,146.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,781.75 : 2,668.95 = 1,433.21 : x
  2. Step 2: Convert to fraction form
    1,781.75/2,668.95 = 1,433.21/x
  3. Step 3: Cross multiply
    1,781.75x = 2,668.95 × 1,433.21
  4. Step 4: Simplify right side
    1,781.75x = 3,825,152.48
  5. Step 5: Solve for x
    x = 3,825,152.48/1,781.75
  6. Step 6: Final answer
    x = 2,146.86

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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.