Home / 2,203.36-3,039.48-1,318.90

Finding the Fourth Proportional to 2,203.36, 3,039.48 and 1,318.90

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Solution

The fourth proportional to 2,203.36, 3,039.48 and 1,318.90 is: 1,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.36 : 3,039.48 = 1,318.90 : x
  2. Step 2: Convert to fraction form
    2,203.36/3,039.48 = 1,318.90/x
  3. Step 3: Cross multiply
    2,203.36x = 3,039.48 × 1,318.90
  4. Step 4: Simplify right side
    2,203.36x = 4,008,770.17
  5. Step 5: Solve for x
    x = 4,008,770.17/2,203.36
  6. Step 6: Final answer
    x = 1,819.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.