Home / 4,140.72-6,211.44-1,218.96

Finding the Fourth Proportional to 4,140.72, 6,211.44 and 1,218.96

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Solution

The fourth proportional to 4,140.72, 6,211.44 and 1,218.96 is: 1,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.72 : 6,211.44 = 1,218.96 : x
  2. Step 2: Convert to fraction form
    4,140.72/6,211.44 = 1,218.96/x
  3. Step 3: Cross multiply
    4,140.72x = 6,211.44 × 1,218.96
  4. Step 4: Simplify right side
    4,140.72x = 7,571,496.90
  5. Step 5: Solve for x
    x = 7,571,496.90/4,140.72
  6. Step 6: Final answer
    x = 1,828.55

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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.