Home / 1,930.26-2,661.27-1,575.84

Finding the Fourth Proportional to 1,930.26, 2,661.27 and 1,575.84

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Solution

The fourth proportional to 1,930.26, 2,661.27 and 1,575.84 is: 2,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.26 : 2,661.27 = 1,575.84 : x
  2. Step 2: Convert to fraction form
    1,930.26/2,661.27 = 1,575.84/x
  3. Step 3: Cross multiply
    1,930.26x = 2,661.27 × 1,575.84
  4. Step 4: Simplify right side
    1,930.26x = 4,193,735.72
  5. Step 5: Solve for x
    x = 4,193,735.72/1,930.26
  6. Step 6: Final answer
    x = 2,172.63

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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.