Home / 2,490.36-3,735.60-1,029.12

Finding the Fourth Proportional to 2,490.36, 3,735.60 and 1,029.12

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Solution

The fourth proportional to 2,490.36, 3,735.60 and 1,029.12 is: 1,543.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.36 : 3,735.60 = 1,029.12 : x
  2. Step 2: Convert to fraction form
    2,490.36/3,735.60 = 1,029.12/x
  3. Step 3: Cross multiply
    2,490.36x = 3,735.60 × 1,029.12
  4. Step 4: Simplify right side
    2,490.36x = 3,844,380.67
  5. Step 5: Solve for x
    x = 3,844,380.67/2,490.36
  6. Step 6: Final answer
    x = 1,543.70

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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.