Home / 2,126.57-3,185.24-1,028.63

Finding the Fourth Proportional to 2,126.57, 3,185.24 and 1,028.63

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Solution

The fourth proportional to 2,126.57, 3,185.24 and 1,028.63 is: 1,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.57 : 3,185.24 = 1,028.63 : x
  2. Step 2: Convert to fraction form
    2,126.57/3,185.24 = 1,028.63/x
  3. Step 3: Cross multiply
    2,126.57x = 3,185.24 × 1,028.63
  4. Step 4: Simplify right side
    2,126.57x = 3,276,412.35
  5. Step 5: Solve for x
    x = 3,276,412.35/2,126.57
  6. Step 6: Final answer
    x = 1,540.70

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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.