Home / 2,490.35-3,735.95-1,028.70

Finding the Fourth Proportional to 2,490.35, 3,735.95 and 1,028.70

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Solution

The fourth proportional to 2,490.35, 3,735.95 and 1,028.70 is: 1,543.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.35 : 3,735.95 = 1,028.70 : x
  2. Step 2: Convert to fraction form
    2,490.35/3,735.95 = 1,028.70/x
  3. Step 3: Cross multiply
    2,490.35x = 3,735.95 × 1,028.70
  4. Step 4: Simplify right side
    2,490.35x = 3,843,166.62
  5. Step 5: Solve for x
    x = 3,843,166.62/2,490.35
  6. Step 6: Final answer
    x = 1,543.23

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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.