Home / 1,961.88-2,707.02-1,175.64

Finding the Fourth Proportional to 1,961.88, 2,707.02 and 1,175.64

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Solution

The fourth proportional to 1,961.88, 2,707.02 and 1,175.64 is: 1,622.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.88 : 2,707.02 = 1,175.64 : x
  2. Step 2: Convert to fraction form
    1,961.88/2,707.02 = 1,175.64/x
  3. Step 3: Cross multiply
    1,961.88x = 2,707.02 × 1,175.64
  4. Step 4: Simplify right side
    1,961.88x = 3,182,480.99
  5. Step 5: Solve for x
    x = 3,182,480.99/1,961.88
  6. Step 6: Final answer
    x = 1,622.16

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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.