Home / 2,203.96-3,042.42-1,319.60

Finding the Fourth Proportional to 2,203.96, 3,042.42 and 1,319.60

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Solution

The fourth proportional to 2,203.96, 3,042.42 and 1,319.60 is: 1,821.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.96 : 3,042.42 = 1,319.60 : x
  2. Step 2: Convert to fraction form
    2,203.96/3,042.42 = 1,319.60/x
  3. Step 3: Cross multiply
    2,203.96x = 3,042.42 × 1,319.60
  4. Step 4: Simplify right side
    2,203.96x = 4,014,777.43
  5. Step 5: Solve for x
    x = 4,014,777.43/2,203.96
  6. Step 6: Final answer
    x = 1,821.62

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1.5x scale

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.