Home / 6,905.09-9,529.56-3,921.86

Finding the Fourth Proportional to 6,905.09, 9,529.56 and 3,921.86

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Solution

The fourth proportional to 6,905.09, 9,529.56 and 3,921.86 is: 5,412.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.09 : 9,529.56 = 3,921.86 : x
  2. Step 2: Convert to fraction form
    6,905.09/9,529.56 = 3,921.86/x
  3. Step 3: Cross multiply
    6,905.09x = 9,529.56 × 3,921.86
  4. Step 4: Simplify right side
    6,905.09x = 37,373,532.92
  5. Step 5: Solve for x
    x = 37,373,532.92/6,905.09
  6. Step 6: Final answer
    x = 5,412.47

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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.