Home / 2,998.89-4,138.29-1,739.85

Finding the Fourth Proportional to 2,998.89, 4,138.29 and 1,739.85

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Solution

The fourth proportional to 2,998.89, 4,138.29 and 1,739.85 is: 2,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.89 : 4,138.29 = 1,739.85 : x
  2. Step 2: Convert to fraction form
    2,998.89/4,138.29 = 1,739.85/x
  3. Step 3: Cross multiply
    2,998.89x = 4,138.29 × 1,739.85
  4. Step 4: Simplify right side
    2,998.89x = 7,199,988.34
  5. Step 5: Solve for x
    x = 7,199,988.34/2,998.89
  6. Step 6: Final answer
    x = 2,400.88

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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.