Home / 3,999.49-5,519.29-2,321.02

Finding the Fourth Proportional to 3,999.49, 5,519.29 and 2,321.02

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Solution

The fourth proportional to 3,999.49, 5,519.29 and 2,321.02 is: 3,203.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.49 : 5,519.29 = 2,321.02 : x
  2. Step 2: Convert to fraction form
    3,999.49/5,519.29 = 2,321.02/x
  3. Step 3: Cross multiply
    3,999.49x = 5,519.29 × 2,321.02
  4. Step 4: Simplify right side
    3,999.49x = 12,810,382.48
  5. Step 5: Solve for x
    x = 12,810,382.48/3,999.49
  6. Step 6: Final answer
    x = 3,203.00

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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.