Home / 1,922.10-2,651.27-1,175.64

Finding the Fourth Proportional to 1,922.10, 2,651.27 and 1,175.64

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Solution

The fourth proportional to 1,922.10, 2,651.27 and 1,175.64 is: 1,621.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.10 : 2,651.27 = 1,175.64 : x
  2. Step 2: Convert to fraction form
    1,922.10/2,651.27 = 1,175.64/x
  3. Step 3: Cross multiply
    1,922.10x = 2,651.27 × 1,175.64
  4. Step 4: Simplify right side
    1,922.10x = 3,116,933.18
  5. Step 5: Solve for x
    x = 3,116,933.18/1,922.10
  6. Step 6: Final answer
    x = 1,621.63

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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.