Home / 4,140.98-6,209.33-1,218.90

Finding the Fourth Proportional to 4,140.98, 6,209.33 and 1,218.90

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Solution

The fourth proportional to 4,140.98, 6,209.33 and 1,218.90 is: 1,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.98 : 6,209.33 = 1,218.90 : x
  2. Step 2: Convert to fraction form
    4,140.98/6,209.33 = 1,218.90/x
  3. Step 3: Cross multiply
    4,140.98x = 6,209.33 × 1,218.90
  4. Step 4: Simplify right side
    4,140.98x = 7,568,546.24
  5. Step 5: Solve for x
    x = 7,568,546.24/4,140.98
  6. Step 6: Final answer
    x = 1,827.72

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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.