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Finding the Fourth Proportional to 6,248.41, 8,619.39 and 4,007.79

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Solution

The fourth proportional to 6,248.41, 8,619.39 and 4,007.79 is: 5,528.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,248.41 : 8,619.39 = 4,007.79 : x
  2. Step 2: Convert to fraction form
    6,248.41/8,619.39 = 4,007.79/x
  3. Step 3: Cross multiply
    6,248.41x = 8,619.39 × 4,007.79
  4. Step 4: Simplify right side
    6,248.41x = 34,544,705.05
  5. Step 5: Solve for x
    x = 34,544,705.05/6,248.41
  6. Step 6: Final answer
    x = 5,528.56

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1.5x scale

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.