Home / 2,490.32-3,735.40-1,028.36

Finding the Fourth Proportional to 2,490.32, 3,735.40 and 1,028.36

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Solution

The fourth proportional to 2,490.32, 3,735.40 and 1,028.36 is: 1,542.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.32 : 3,735.40 = 1,028.36 : x
  2. Step 2: Convert to fraction form
    2,490.32/3,735.40 = 1,028.36/x
  3. Step 3: Cross multiply
    2,490.32x = 3,735.40 × 1,028.36
  4. Step 4: Simplify right side
    2,490.32x = 3,841,335.94
  5. Step 5: Solve for x
    x = 3,841,335.94/2,490.32
  6. Step 6: Final answer
    x = 1,542.51

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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.