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Finding the Fourth Proportional to 1,636.95, 2,454.50 and 1,442.39

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Solution

The fourth proportional to 1,636.95, 2,454.50 and 1,442.39 is: 2,162.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.95 : 2,454.50 = 1,442.39 : x
  2. Step 2: Convert to fraction form
    1,636.95/2,454.50 = 1,442.39/x
  3. Step 3: Cross multiply
    1,636.95x = 2,454.50 × 1,442.39
  4. Step 4: Simplify right side
    1,636.95x = 3,540,346.26
  5. Step 5: Solve for x
    x = 3,540,346.26/1,636.95
  6. Step 6: Final answer
    x = 2,162.77

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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.