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Finding the Fourth Proportional to 1,481.58, 2,220.21 and 1,071.59

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Solution

The fourth proportional to 1,481.58, 2,220.21 and 1,071.59 is: 1,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.58 : 2,220.21 = 1,071.59 : x
  2. Step 2: Convert to fraction form
    1,481.58/2,220.21 = 1,071.59/x
  3. Step 3: Cross multiply
    1,481.58x = 2,220.21 × 1,071.59
  4. Step 4: Simplify right side
    1,481.58x = 2,379,143.73
  5. Step 5: Solve for x
    x = 2,379,143.73/1,481.58
  6. Step 6: Final answer
    x = 1,605.82

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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.