Home / 7,127.57-9,836.34-3,983.75

Finding the Fourth Proportional to 7,127.57, 9,836.34 and 3,983.75

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Solution

The fourth proportional to 7,127.57, 9,836.34 and 3,983.75 is: 5,497.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.57 : 9,836.34 = 3,983.75 : x
  2. Step 2: Convert to fraction form
    7,127.57/9,836.34 = 3,983.75/x
  3. Step 3: Cross multiply
    7,127.57x = 9,836.34 × 3,983.75
  4. Step 4: Simplify right side
    7,127.57x = 39,185,519.48
  5. Step 5: Solve for x
    x = 39,185,519.48/7,127.57
  6. Step 6: Final answer
    x = 5,497.74

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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.