Home / 7,127.37-9,835.75-3,983.56

Finding the Fourth Proportional to 7,127.37, 9,835.75 and 3,983.56

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Solution

The fourth proportional to 7,127.37, 9,835.75 and 3,983.56 is: 5,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.37 : 9,835.75 = 3,983.56 : x
  2. Step 2: Convert to fraction form
    7,127.37/9,835.75 = 3,983.56/x
  3. Step 3: Cross multiply
    7,127.37x = 9,835.75 × 3,983.56
  4. Step 4: Simplify right side
    7,127.37x = 39,181,300.27
  5. Step 5: Solve for x
    x = 39,181,300.27/7,127.37
  6. Step 6: Final answer
    x = 5,497.30

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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.