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Finding the Fourth Proportional to 3,392.52, 4,681.38 and 1,995

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Solution

The fourth proportional to 3,392.52, 4,681.38 and 1,995 is: 2,752.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.52 : 4,681.38 = 1,995 : x
  2. Step 2: Convert to fraction form
    3,392.52/4,681.38 = 1,995/x
  3. Step 3: Cross multiply
    3,392.52x = 4,681.38 × 1,995
  4. Step 4: Simplify right side
    3,392.52x = 9,339,353.10
  5. Step 5: Solve for x
    x = 9,339,353.10/3,392.52
  6. Step 6: Final answer
    x = 2,752.92

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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.