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Finding the Fourth Proportional to 6,888.91, 9,506.81 and 3,904.68

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Solution

The fourth proportional to 6,888.91, 9,506.81 and 3,904.68 is: 5,388.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.91 : 9,506.81 = 3,904.68 : x
  2. Step 2: Convert to fraction form
    6,888.91/9,506.81 = 3,904.68/x
  3. Step 3: Cross multiply
    6,888.91x = 9,506.81 × 3,904.68
  4. Step 4: Simplify right side
    6,888.91x = 37,121,057.87
  5. Step 5: Solve for x
    x = 37,121,057.87/6,888.91
  6. Step 6: Final answer
    x = 5,388.52

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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.