Home / 2,759.10-3,804.96-2,128.63

Finding the Fourth Proportional to 2,759.10, 3,804.96 and 2,128.63

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Solution

The fourth proportional to 2,759.10, 3,804.96 and 2,128.63 is: 2,935.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.10 : 3,804.96 = 2,128.63 : x
  2. Step 2: Convert to fraction form
    2,759.10/3,804.96 = 2,128.63/x
  3. Step 3: Cross multiply
    2,759.10x = 3,804.96 × 2,128.63
  4. Step 4: Simplify right side
    2,759.10x = 8,099,332.98
  5. Step 5: Solve for x
    x = 8,099,332.98/2,759.10
  6. Step 6: Final answer
    x = 2,935.50

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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.