Home / 6,351.72-8,765.39-3,557.22

Finding the Fourth Proportional to 6,351.72, 8,765.39 and 3,557.22

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Solution

The fourth proportional to 6,351.72, 8,765.39 and 3,557.22 is: 4,908.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,351.72 : 8,765.39 = 3,557.22 : x
  2. Step 2: Convert to fraction form
    6,351.72/8,765.39 = 3,557.22/x
  3. Step 3: Cross multiply
    6,351.72x = 8,765.39 × 3,557.22
  4. Step 4: Simplify right side
    6,351.72x = 31,180,359.00
  5. Step 5: Solve for x
    x = 31,180,359.00/6,351.72
  6. Step 6: Final answer
    x = 4,908.97

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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.