Home / 2,209.48-3,312.88-1,039.73

Finding the Fourth Proportional to 2,209.48, 3,312.88 and 1,039.73

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Solution

The fourth proportional to 2,209.48, 3,312.88 and 1,039.73 is: 1,558.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.48 : 3,312.88 = 1,039.73 : x
  2. Step 2: Convert to fraction form
    2,209.48/3,312.88 = 1,039.73/x
  3. Step 3: Cross multiply
    2,209.48x = 3,312.88 × 1,039.73
  4. Step 4: Simplify right side
    2,209.48x = 3,444,481.56
  5. Step 5: Solve for x
    x = 3,444,481.56/2,209.48
  6. Step 6: Final answer
    x = 1,558.96

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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.