Home / 1,963.76-2,946.87-1,131.89

Finding the Fourth Proportional to 1,963.76, 2,946.87 and 1,131.89

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Solution

The fourth proportional to 1,963.76, 2,946.87 and 1,131.89 is: 1,698.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.76 : 2,946.87 = 1,131.89 : x
  2. Step 2: Convert to fraction form
    1,963.76/2,946.87 = 1,131.89/x
  3. Step 3: Cross multiply
    1,963.76x = 2,946.87 × 1,131.89
  4. Step 4: Simplify right side
    1,963.76x = 3,335,532.68
  5. Step 5: Solve for x
    x = 3,335,532.68/1,963.76
  6. Step 6: Final answer
    x = 1,698.54

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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.