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Finding the Fourth Proportional to 6,880.25, 9,494.45 and 3,896.25

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Solution

The fourth proportional to 6,880.25, 9,494.45 and 3,896.25 is: 5,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.25 : 9,494.45 = 3,896.25 : x
  2. Step 2: Convert to fraction form
    6,880.25/9,494.45 = 3,896.25/x
  3. Step 3: Cross multiply
    6,880.25x = 9,494.45 × 3,896.25
  4. Step 4: Simplify right side
    6,880.25x = 36,992,683.86
  5. Step 5: Solve for x
    x = 36,992,683.86/6,880.25
  6. Step 6: Final answer
    x = 5,376.65

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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.