Home / 1,729.17-2,383.41-1,224.38

Finding the Fourth Proportional to 1,729.17, 2,383.41 and 1,224.38

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Solution

The fourth proportional to 1,729.17, 2,383.41 and 1,224.38 is: 1,687.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.17 : 2,383.41 = 1,224.38 : x
  2. Step 2: Convert to fraction form
    1,729.17/2,383.41 = 1,224.38/x
  3. Step 3: Cross multiply
    1,729.17x = 2,383.41 × 1,224.38
  4. Step 4: Simplify right side
    1,729.17x = 2,918,199.54
  5. Step 5: Solve for x
    x = 2,918,199.54/1,729.17
  6. Step 6: Final answer
    x = 1,687.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.