Home / 1,963.21-2,708.10-1,176.80

Finding the Fourth Proportional to 1,963.21, 2,708.10 and 1,176.80

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Solution

The fourth proportional to 1,963.21, 2,708.10 and 1,176.80 is: 1,623.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.21 : 2,708.10 = 1,176.80 : x
  2. Step 2: Convert to fraction form
    1,963.21/2,708.10 = 1,176.80/x
  3. Step 3: Cross multiply
    1,963.21x = 2,708.10 × 1,176.80
  4. Step 4: Simplify right side
    1,963.21x = 3,186,892.08
  5. Step 5: Solve for x
    x = 3,186,892.08/1,963.21
  6. Step 6: Final answer
    x = 1,623.31

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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.