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Finding the Fourth Proportional to 2,203.58, 3,300.87 and 1,230.20

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Solution

The fourth proportional to 2,203.58, 3,300.87 and 1,230.20 is: 1,842.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.58 : 3,300.87 = 1,230.20 : x
  2. Step 2: Convert to fraction form
    2,203.58/3,300.87 = 1,230.20/x
  3. Step 3: Cross multiply
    2,203.58x = 3,300.87 × 1,230.20
  4. Step 4: Simplify right side
    2,203.58x = 4,060,730.27
  5. Step 5: Solve for x
    x = 4,060,730.27/2,203.58
  6. Step 6: Final answer
    x = 1,842.79

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1.5x scale

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.