Home / 8,140.83-12,211.26-2,945.49

Finding the Fourth Proportional to 8,140.83, 12,211.26 and 2,945.49

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Solution

The fourth proportional to 8,140.83, 12,211.26 and 2,945.49 is: 4,418.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.83 : 12,211.26 = 2,945.49 : x
  2. Step 2: Convert to fraction form
    8,140.83/12,211.26 = 2,945.49/x
  3. Step 3: Cross multiply
    8,140.83x = 12,211.26 × 2,945.49
  4. Step 4: Simplify right side
    8,140.83x = 35,968,144.22
  5. Step 5: Solve for x
    x = 35,968,144.22/8,140.83
  6. Step 6: Final answer
    x = 4,418.24

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1.5x scale

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.