Home / 7,127.10-9,835.47-3,983.25

Finding the Fourth Proportional to 7,127.10, 9,835.47 and 3,983.25

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Solution

The fourth proportional to 7,127.10, 9,835.47 and 3,983.25 is: 5,496.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.10 : 9,835.47 = 3,983.25 : x
  2. Step 2: Convert to fraction form
    7,127.10/9,835.47 = 3,983.25/x
  3. Step 3: Cross multiply
    7,127.10x = 9,835.47 × 3,983.25
  4. Step 4: Simplify right side
    7,127.10x = 39,177,135.88
  5. Step 5: Solve for x
    x = 39,177,135.88/7,127.10
  6. Step 6: Final answer
    x = 5,496.93

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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.