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Finding the Fourth Proportional to 6,287.07, 9,431.97 and 1,904.87

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Solution

The fourth proportional to 6,287.07, 9,431.97 and 1,904.87 is: 2,857.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.07 : 9,431.97 = 1,904.87 : x
  2. Step 2: Convert to fraction form
    6,287.07/9,431.97 = 1,904.87/x
  3. Step 3: Cross multiply
    6,287.07x = 9,431.97 × 1,904.87
  4. Step 4: Simplify right side
    6,287.07x = 17,966,629.53
  5. Step 5: Solve for x
    x = 17,966,629.53/6,287.07
  6. Step 6: Final answer
    x = 2,857.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.