Home / 1,427.58-2,138.75-1,197.94

Finding the Fourth Proportional to 1,427.58, 2,138.75 and 1,197.94

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Solution

The fourth proportional to 1,427.58, 2,138.75 and 1,197.94 is: 1,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.58 : 2,138.75 = 1,197.94 : x
  2. Step 2: Convert to fraction form
    1,427.58/2,138.75 = 1,197.94/x
  3. Step 3: Cross multiply
    1,427.58x = 2,138.75 × 1,197.94
  4. Step 4: Simplify right side
    1,427.58x = 2,562,094.18
  5. Step 5: Solve for x
    x = 2,562,094.18/1,427.58
  6. Step 6: Final answer
    x = 1,794.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.