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Finding the Fourth Proportional to 6,880.74, 9,495.64 and 3,896.51

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Solution

The fourth proportional to 6,880.74, 9,495.64 and 3,896.51 is: 5,377.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.74 : 9,495.64 = 3,896.51 : x
  2. Step 2: Convert to fraction form
    6,880.74/9,495.64 = 3,896.51/x
  3. Step 3: Cross multiply
    6,880.74x = 9,495.64 × 3,896.51
  4. Step 4: Simplify right side
    6,880.74x = 36,999,830.90
  5. Step 5: Solve for x
    x = 36,999,830.90/6,880.74
  6. Step 6: Final answer
    x = 5,377.31

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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.