Home / 1,963.21-2,709.17-1,078.93

Finding the Fourth Proportional to 1,963.21, 2,709.17 and 1,078.93

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Solution

The fourth proportional to 1,963.21, 2,709.17 and 1,078.93 is: 1,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.21 : 2,709.17 = 1,078.93 : x
  2. Step 2: Convert to fraction form
    1,963.21/2,709.17 = 1,078.93/x
  3. Step 3: Cross multiply
    1,963.21x = 2,709.17 × 1,078.93
  4. Step 4: Simplify right side
    1,963.21x = 2,923,004.79
  5. Step 5: Solve for x
    x = 2,923,004.79/1,963.21
  6. Step 6: Final answer
    x = 1,488.89

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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.