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Finding the Fourth Proportional to 2,642.28, 3,646.62 and 2,014.62

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Solution

The fourth proportional to 2,642.28, 3,646.62 and 2,014.62 is: 2,780.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.28 : 3,646.62 = 2,014.62 : x
  2. Step 2: Convert to fraction form
    2,642.28/3,646.62 = 2,014.62/x
  3. Step 3: Cross multiply
    2,642.28x = 3,646.62 × 2,014.62
  4. Step 4: Simplify right side
    2,642.28x = 7,346,553.58
  5. Step 5: Solve for x
    x = 7,346,553.58/2,642.28
  6. Step 6: Final answer
    x = 2,780.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.