Home / 4,140.03-6,211.25-1,218.34

Finding the Fourth Proportional to 4,140.03, 6,211.25 and 1,218.34

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Solution

The fourth proportional to 4,140.03, 6,211.25 and 1,218.34 is: 1,827.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.03 : 6,211.25 = 1,218.34 : x
  2. Step 2: Convert to fraction form
    4,140.03/6,211.25 = 1,218.34/x
  3. Step 3: Cross multiply
    4,140.03x = 6,211.25 × 1,218.34
  4. Step 4: Simplify right side
    4,140.03x = 7,567,420.57
  5. Step 5: Solve for x
    x = 7,567,420.57/4,140.03
  6. Step 6: Final answer
    x = 1,827.86

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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.