Home / 1,940.24-2,675.72-1,267.76

Finding the Fourth Proportional to 1,940.24, 2,675.72 and 1,267.76

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Solution

The fourth proportional to 1,940.24, 2,675.72 and 1,267.76 is: 1,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940.24 : 2,675.72 = 1,267.76 : x
  2. Step 2: Convert to fraction form
    1,940.24/2,675.72 = 1,267.76/x
  3. Step 3: Cross multiply
    1,940.24x = 2,675.72 × 1,267.76
  4. Step 4: Simplify right side
    1,940.24x = 3,392,170.79
  5. Step 5: Solve for x
    x = 3,392,170.79/1,940.24
  6. Step 6: Final answer
    x = 1,748.33

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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.