Home / 4,140.44-6,211.92-1,218.77

Finding the Fourth Proportional to 4,140.44, 6,211.92 and 1,218.77

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Solution

The fourth proportional to 4,140.44, 6,211.92 and 1,218.77 is: 1,828.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.44 : 6,211.92 = 1,218.77 : x
  2. Step 2: Convert to fraction form
    4,140.44/6,211.92 = 1,218.77/x
  3. Step 3: Cross multiply
    4,140.44x = 6,211.92 × 1,218.77
  4. Step 4: Simplify right side
    4,140.44x = 7,570,901.74
  5. Step 5: Solve for x
    x = 7,570,901.74/4,140.44
  6. Step 6: Final answer
    x = 1,828.53

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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.