Home / 1,619.38-2,429.36-1,072.01

Finding the Fourth Proportional to 1,619.38, 2,429.36 and 1,072.01

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Solution

The fourth proportional to 1,619.38, 2,429.36 and 1,072.01 is: 1,608.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.38 : 2,429.36 = 1,072.01 : x
  2. Step 2: Convert to fraction form
    1,619.38/2,429.36 = 1,072.01/x
  3. Step 3: Cross multiply
    1,619.38x = 2,429.36 × 1,072.01
  4. Step 4: Simplify right side
    1,619.38x = 2,604,292.85
  5. Step 5: Solve for x
    x = 2,604,292.85/1,619.38
  6. Step 6: Final answer
    x = 1,608.21

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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.