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Finding the Fourth Proportional to 6,434, 8,878.88 and 3,601.36

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Solution

The fourth proportional to 6,434, 8,878.88 and 3,601.36 is: 4,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434 : 8,878.88 = 3,601.36 : x
  2. Step 2: Convert to fraction form
    6,434/8,878.88 = 3,601.36/x
  3. Step 3: Cross multiply
    6,434x = 8,878.88 × 3,601.36
  4. Step 4: Simplify right side
    6,434x = 31,976,043.28
  5. Step 5: Solve for x
    x = 31,976,043.28/6,434
  6. Step 6: Final answer
    x = 4,969.85

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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.