Home / 2,999.15-4,137.77-2,005.06

Finding the Fourth Proportional to 2,999.15, 4,137.77 and 2,005.06

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Solution

The fourth proportional to 2,999.15, 4,137.77 and 2,005.06 is: 2,766.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.15 : 4,137.77 = 2,005.06 : x
  2. Step 2: Convert to fraction form
    2,999.15/4,137.77 = 2,005.06/x
  3. Step 3: Cross multiply
    2,999.15x = 4,137.77 × 2,005.06
  4. Step 4: Simplify right side
    2,999.15x = 8,296,446.40
  5. Step 5: Solve for x
    x = 8,296,446.40/2,999.15
  6. Step 6: Final answer
    x = 2,766.27

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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.