Home / 1,729.08-2,591.19-1,239.84

Finding the Fourth Proportional to 1,729.08, 2,591.19 and 1,239.84

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Solution

The fourth proportional to 1,729.08, 2,591.19 and 1,239.84 is: 1,858.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.08 : 2,591.19 = 1,239.84 : x
  2. Step 2: Convert to fraction form
    1,729.08/2,591.19 = 1,239.84/x
  3. Step 3: Cross multiply
    1,729.08x = 2,591.19 × 1,239.84
  4. Step 4: Simplify right side
    1,729.08x = 3,212,661.01
  5. Step 5: Solve for x
    x = 3,212,661.01/1,729.08
  6. Step 6: Final answer
    x = 1,858.02

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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.