Home / 2,383.72-3,572.26-1,861.36

Finding the Fourth Proportional to 2,383.72, 3,572.26 and 1,861.36

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Solution

The fourth proportional to 2,383.72, 3,572.26 and 1,861.36 is: 2,789.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.72 : 3,572.26 = 1,861.36 : x
  2. Step 2: Convert to fraction form
    2,383.72/3,572.26 = 1,861.36/x
  3. Step 3: Cross multiply
    2,383.72x = 3,572.26 × 1,861.36
  4. Step 4: Simplify right side
    2,383.72x = 6,649,261.87
  5. Step 5: Solve for x
    x = 6,649,261.87/2,383.72
  6. Step 6: Final answer
    x = 2,789.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.