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Finding the Fourth Proportional to 2,643.44, 3,642.06 and 1,934.08

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Solution

The fourth proportional to 2,643.44, 3,642.06 and 1,934.08 is: 2,664.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.44 : 3,642.06 = 1,934.08 : x
  2. Step 2: Convert to fraction form
    2,643.44/3,642.06 = 1,934.08/x
  3. Step 3: Cross multiply
    2,643.44x = 3,642.06 × 1,934.08
  4. Step 4: Simplify right side
    2,643.44x = 7,044,033.55
  5. Step 5: Solve for x
    x = 7,044,033.55/2,643.44
  6. Step 6: Final answer
    x = 2,664.73

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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.