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Finding the Fourth Proportional to 3,614, 4,987.32 and 1,958

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Solution

The fourth proportional to 3,614, 4,987.32 and 1,958 is: 2,702.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614 : 4,987.32 = 1,958 : x
  2. Step 2: Convert to fraction form
    3,614/4,987.32 = 1,958/x
  3. Step 3: Cross multiply
    3,614x = 4,987.32 × 1,958
  4. Step 4: Simplify right side
    3,614x = 9,765,172.56
  5. Step 5: Solve for x
    x = 9,765,172.56/3,614
  6. Step 6: Final answer
    x = 2,702.04

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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.