Home / 2,730.51-4,086.86-1,999.89

Finding the Fourth Proportional to 2,730.51, 4,086.86 and 1,999.89

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Solution

The fourth proportional to 2,730.51, 4,086.86 and 1,999.89 is: 2,993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.51 : 4,086.86 = 1,999.89 : x
  2. Step 2: Convert to fraction form
    2,730.51/4,086.86 = 1,999.89/x
  3. Step 3: Cross multiply
    2,730.51x = 4,086.86 × 1,999.89
  4. Step 4: Simplify right side
    2,730.51x = 8,173,260.45
  5. Step 5: Solve for x
    x = 8,173,260.45/2,730.51
  6. Step 6: Final answer
    x = 2,993.31

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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.