Home / 6,904.80-9,529.44-3,921.56

Finding the Fourth Proportional to 6,904.80, 9,529.44 and 3,921.56

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Solution

The fourth proportional to 6,904.80, 9,529.44 and 3,921.56 is: 5,412.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,904.80 : 9,529.44 = 3,921.56 : x
  2. Step 2: Convert to fraction form
    6,904.80/9,529.44 = 3,921.56/x
  3. Step 3: Cross multiply
    6,904.80x = 9,529.44 × 3,921.56
  4. Step 4: Simplify right side
    6,904.80x = 37,370,270.73
  5. Step 5: Solve for x
    x = 37,370,270.73/6,904.80
  6. Step 6: Final answer
    x = 5,412.22

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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.