Home / 1,908.36-2,854.63-1,791.72

Finding the Fourth Proportional to 1,908.36, 2,854.63 and 1,791.72

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Solution

The fourth proportional to 1,908.36, 2,854.63 and 1,791.72 is: 2,680.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.36 : 2,854.63 = 1,791.72 : x
  2. Step 2: Convert to fraction form
    1,908.36/2,854.63 = 1,791.72/x
  3. Step 3: Cross multiply
    1,908.36x = 2,854.63 × 1,791.72
  4. Step 4: Simplify right side
    1,908.36x = 5,114,697.66
  5. Step 5: Solve for x
    x = 5,114,697.66/1,908.36
  6. Step 6: Final answer
    x = 2,680.15

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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.