Home / 1,941.80-2,679.71-1,102.47

Finding the Fourth Proportional to 1,941.80, 2,679.71 and 1,102.47

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Solution

The fourth proportional to 1,941.80, 2,679.71 and 1,102.47 is: 1,521.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.80 : 2,679.71 = 1,102.47 : x
  2. Step 2: Convert to fraction form
    1,941.80/2,679.71 = 1,102.47/x
  3. Step 3: Cross multiply
    1,941.80x = 2,679.71 × 1,102.47
  4. Step 4: Simplify right side
    1,941.80x = 2,954,294.37
  5. Step 5: Solve for x
    x = 2,954,294.37/1,941.80
  6. Step 6: Final answer
    x = 1,521.42

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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.