Home / 2,490.88-3,734.70-1,028.56

Finding the Fourth Proportional to 2,490.88, 3,734.70 and 1,028.56

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Solution

The fourth proportional to 2,490.88, 3,734.70 and 1,028.56 is: 1,542.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.88 : 3,734.70 = 1,028.56 : x
  2. Step 2: Convert to fraction form
    2,490.88/3,734.70 = 1,028.56/x
  3. Step 3: Cross multiply
    2,490.88x = 3,734.70 × 1,028.56
  4. Step 4: Simplify right side
    2,490.88x = 3,841,363.03
  5. Step 5: Solve for x
    x = 3,841,363.03/2,490.88
  6. Step 6: Final answer
    x = 1,542.17

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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.