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Finding the Fourth Proportional to 1,815.73, 2,718.90 and 1,522.53

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Solution

The fourth proportional to 1,815.73, 2,718.90 and 1,522.53 is: 2,279.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.73 : 2,718.90 = 1,522.53 : x
  2. Step 2: Convert to fraction form
    1,815.73/2,718.90 = 1,522.53/x
  3. Step 3: Cross multiply
    1,815.73x = 2,718.90 × 1,522.53
  4. Step 4: Simplify right side
    1,815.73x = 4,139,606.82
  5. Step 5: Solve for x
    x = 4,139,606.82/1,815.73
  6. Step 6: Final answer
    x = 2,279.86

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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.