Home / 4,090.80-6,139.31-2,998.02

Finding the Fourth Proportional to 4,090.80, 6,139.31 and 2,998.02

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Solution

The fourth proportional to 4,090.80, 6,139.31 and 2,998.02 is: 4,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,090.80 : 6,139.31 = 2,998.02 : x
  2. Step 2: Convert to fraction form
    4,090.80/6,139.31 = 2,998.02/x
  3. Step 3: Cross multiply
    4,090.80x = 6,139.31 × 2,998.02
  4. Step 4: Simplify right side
    4,090.80x = 18,405,759.18
  5. Step 5: Solve for x
    x = 18,405,759.18/4,090.80
  6. Step 6: Final answer
    x = 4,499.31

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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.