Home / 2,029.78-3,039.40-1,739.15

Finding the Fourth Proportional to 2,029.78, 3,039.40 and 1,739.15

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Solution

The fourth proportional to 2,029.78, 3,039.40 and 1,739.15 is: 2,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.78 : 3,039.40 = 1,739.15 : x
  2. Step 2: Convert to fraction form
    2,029.78/3,039.40 = 1,739.15/x
  3. Step 3: Cross multiply
    2,029.78x = 3,039.40 × 1,739.15
  4. Step 4: Simplify right side
    2,029.78x = 5,285,957.45
  5. Step 5: Solve for x
    x = 5,285,957.45/2,029.78
  6. Step 6: Final answer
    x = 2,604.20

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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.