Home / 7,127.94-9,835.66-3,984.06

Finding the Fourth Proportional to 7,127.94, 9,835.66 and 3,984.06

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Solution

The fourth proportional to 7,127.94, 9,835.66 and 3,984.06 is: 5,497.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.94 : 9,835.66 = 3,984.06 : x
  2. Step 2: Convert to fraction form
    7,127.94/9,835.66 = 3,984.06/x
  3. Step 3: Cross multiply
    7,127.94x = 9,835.66 × 3,984.06
  4. Step 4: Simplify right side
    7,127.94x = 39,185,859.58
  5. Step 5: Solve for x
    x = 39,185,859.58/7,127.94
  6. Step 6: Final answer
    x = 5,497.50

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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.