Home / 2,137.26-3,203.60-1,039.20

Finding the Fourth Proportional to 2,137.26, 3,203.60 and 1,039.20

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Solution

The fourth proportional to 2,137.26, 3,203.60 and 1,039.20 is: 1,557.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.26 : 3,203.60 = 1,039.20 : x
  2. Step 2: Convert to fraction form
    2,137.26/3,203.60 = 1,039.20/x
  3. Step 3: Cross multiply
    2,137.26x = 3,203.60 × 1,039.20
  4. Step 4: Simplify right side
    2,137.26x = 3,329,181.12
  5. Step 5: Solve for x
    x = 3,329,181.12/2,137.26
  6. Step 6: Final answer
    x = 1,557.69

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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.