Home / 1,941.32-2,679.54-1,195.40

Finding the Fourth Proportional to 1,941.32, 2,679.54 and 1,195.40

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Solution

The fourth proportional to 1,941.32, 2,679.54 and 1,195.40 is: 1,649.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.32 : 2,679.54 = 1,195.40 : x
  2. Step 2: Convert to fraction form
    1,941.32/2,679.54 = 1,195.40/x
  3. Step 3: Cross multiply
    1,941.32x = 2,679.54 × 1,195.40
  4. Step 4: Simplify right side
    1,941.32x = 3,203,122.12
  5. Step 5: Solve for x
    x = 3,203,122.12/1,941.32
  6. Step 6: Final answer
    x = 1,649.97

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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.