Home / 7,040.07-9,715.29-3,896.73

Finding the Fourth Proportional to 7,040.07, 9,715.29 and 3,896.73

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Solution

The fourth proportional to 7,040.07, 9,715.29 and 3,896.73 is: 5,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.07 : 9,715.29 = 3,896.73 : x
  2. Step 2: Convert to fraction form
    7,040.07/9,715.29 = 3,896.73/x
  3. Step 3: Cross multiply
    7,040.07x = 9,715.29 × 3,896.73
  4. Step 4: Simplify right side
    7,040.07x = 37,857,862.00
  5. Step 5: Solve for x
    x = 37,857,862.00/7,040.07
  6. Step 6: Final answer
    x = 5,377.48

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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.