Home / 6,905.61-9,529.40-3,921.03

Finding the Fourth Proportional to 6,905.61, 9,529.40 and 3,921.03

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Solution

The fourth proportional to 6,905.61, 9,529.40 and 3,921.03 is: 5,410.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.61 : 9,529.40 = 3,921.03 : x
  2. Step 2: Convert to fraction form
    6,905.61/9,529.40 = 3,921.03/x
  3. Step 3: Cross multiply
    6,905.61x = 9,529.40 × 3,921.03
  4. Step 4: Simplify right side
    6,905.61x = 37,365,073.08
  5. Step 5: Solve for x
    x = 37,365,073.08/6,905.61
  6. Step 6: Final answer
    x = 5,410.83

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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.