Home / 2,107.52-2,904-1,791.68

Finding the Fourth Proportional to 2,107.52, 2,904 and 1,791.68

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Solution

The fourth proportional to 2,107.52, 2,904 and 1,791.68 is: 2,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.52 : 2,904 = 1,791.68 : x
  2. Step 2: Convert to fraction form
    2,107.52/2,904 = 1,791.68/x
  3. Step 3: Cross multiply
    2,107.52x = 2,904 × 1,791.68
  4. Step 4: Simplify right side
    2,107.52x = 5,203,038.72
  5. Step 5: Solve for x
    x = 5,203,038.72/2,107.52
  6. Step 6: Final answer
    x = 2,468.80

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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.