Home / 2,999.49-4,144.80-2,855.46

Finding the Fourth Proportional to 2,999.49, 4,144.80 and 2,855.46

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Solution

The fourth proportional to 2,999.49, 4,144.80 and 2,855.46 is: 3,945.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.49 : 4,144.80 = 2,855.46 : x
  2. Step 2: Convert to fraction form
    2,999.49/4,144.80 = 2,855.46/x
  3. Step 3: Cross multiply
    2,999.49x = 4,144.80 × 2,855.46
  4. Step 4: Simplify right side
    2,999.49x = 11,835,310.61
  5. Step 5: Solve for x
    x = 11,835,310.61/2,999.49
  6. Step 6: Final answer
    x = 3,945.77

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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.