Home / 1,963.36-2,709.21-1,079.11

Finding the Fourth Proportional to 1,963.36, 2,709.21 and 1,079.11

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Solution

The fourth proportional to 1,963.36, 2,709.21 and 1,079.11 is: 1,489.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.36 : 2,709.21 = 1,079.11 : x
  2. Step 2: Convert to fraction form
    1,963.36/2,709.21 = 1,079.11/x
  3. Step 3: Cross multiply
    1,963.36x = 2,709.21 × 1,079.11
  4. Step 4: Simplify right side
    1,963.36x = 2,923,535.60
  5. Step 5: Solve for x
    x = 2,923,535.60/1,963.36
  6. Step 6: Final answer
    x = 1,489.05

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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.