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Finding the Fourth Proportional to 2,625, 3,937.95 and 1,164.12

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Solution

The fourth proportional to 2,625, 3,937.95 and 1,164.12 is: 1,746.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625 : 3,937.95 = 1,164.12 : x
  2. Step 2: Convert to fraction form
    2,625/3,937.95 = 1,164.12/x
  3. Step 3: Cross multiply
    2,625x = 3,937.95 × 1,164.12
  4. Step 4: Simplify right side
    2,625x = 4,584,246.35
  5. Step 5: Solve for x
    x = 4,584,246.35/2,625
  6. Step 6: Final answer
    x = 1,746.38

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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.