Home / 1,729.30-2,584.19-1,243.30

Finding the Fourth Proportional to 1,729.30, 2,584.19 and 1,243.30

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Solution

The fourth proportional to 1,729.30, 2,584.19 and 1,243.30 is: 1,857.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.30 : 2,584.19 = 1,243.30 : x
  2. Step 2: Convert to fraction form
    1,729.30/2,584.19 = 1,243.30/x
  3. Step 3: Cross multiply
    1,729.30x = 2,584.19 × 1,243.30
  4. Step 4: Simplify right side
    1,729.30x = 3,212,923.43
  5. Step 5: Solve for x
    x = 3,212,923.43/1,729.30
  6. Step 6: Final answer
    x = 1,857.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.