Home / 1,941.70-2,678.94-1,102.36

Finding the Fourth Proportional to 1,941.70, 2,678.94 and 1,102.36

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Solution

The fourth proportional to 1,941.70, 2,678.94 and 1,102.36 is: 1,520.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.70 : 2,678.94 = 1,102.36 : x
  2. Step 2: Convert to fraction form
    1,941.70/2,678.94 = 1,102.36/x
  3. Step 3: Cross multiply
    1,941.70x = 2,678.94 × 1,102.36
  4. Step 4: Simplify right side
    1,941.70x = 2,953,156.30
  5. Step 5: Solve for x
    x = 2,953,156.30/1,941.70
  6. Step 6: Final answer
    x = 1,520.91

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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.