Home / 7,127.41-9,835.79-3,983.59

Finding the Fourth Proportional to 7,127.41, 9,835.79 and 3,983.59

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Solution

The fourth proportional to 7,127.41, 9,835.79 and 3,983.59 is: 5,497.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.41 : 9,835.79 = 3,983.59 : x
  2. Step 2: Convert to fraction form
    7,127.41/9,835.79 = 3,983.59/x
  3. Step 3: Cross multiply
    7,127.41x = 9,835.79 × 3,983.59
  4. Step 4: Simplify right side
    7,127.41x = 39,181,754.69
  5. Step 5: Solve for x
    x = 39,181,754.69/7,127.41
  6. Step 6: Final answer
    x = 5,497.33

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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.