Home / 1,384.88-1,910.58-1,274.36

Finding the Fourth Proportional to 1,384.88, 1,910.58 and 1,274.36

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Solution

The fourth proportional to 1,384.88, 1,910.58 and 1,274.36 is: 1,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.88 : 1,910.58 = 1,274.36 : x
  2. Step 2: Convert to fraction form
    1,384.88/1,910.58 = 1,274.36/x
  3. Step 3: Cross multiply
    1,384.88x = 1,910.58 × 1,274.36
  4. Step 4: Simplify right side
    1,384.88x = 2,434,766.73
  5. Step 5: Solve for x
    x = 2,434,766.73/1,384.88
  6. Step 6: Final answer
    x = 1,758.11

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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.