Home / 6,634.56-9,153.36-3,979.92

Finding the Fourth Proportional to 6,634.56, 9,153.36 and 3,979.92

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Solution

The fourth proportional to 6,634.56, 9,153.36 and 3,979.92 is: 5,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,634.56 : 9,153.36 = 3,979.92 : x
  2. Step 2: Convert to fraction form
    6,634.56/9,153.36 = 3,979.92/x
  3. Step 3: Cross multiply
    6,634.56x = 9,153.36 × 3,979.92
  4. Step 4: Simplify right side
    6,634.56x = 36,429,640.53
  5. Step 5: Solve for x
    x = 36,429,640.53/6,634.56
  6. Step 6: Final answer
    x = 5,490.89

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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.