Home / 3,146.33-4,331.07-2,720.77

Finding the Fourth Proportional to 3,146.33, 4,331.07 and 2,720.77

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Solution

The fourth proportional to 3,146.33, 4,331.07 and 2,720.77 is: 3,745.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.33 : 4,331.07 = 2,720.77 : x
  2. Step 2: Convert to fraction form
    3,146.33/4,331.07 = 2,720.77/x
  3. Step 3: Cross multiply
    3,146.33x = 4,331.07 × 2,720.77
  4. Step 4: Simplify right side
    3,146.33x = 11,783,834.50
  5. Step 5: Solve for x
    x = 11,783,834.50/3,146.33
  6. Step 6: Final answer
    x = 3,745.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.