Home / 1,927.78-2,658.73-1,629.73

Finding the Fourth Proportional to 1,927.78, 2,658.73 and 1,629.73

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Solution

The fourth proportional to 1,927.78, 2,658.73 and 1,629.73 is: 2,247.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.78 : 2,658.73 = 1,629.73 : x
  2. Step 2: Convert to fraction form
    1,927.78/2,658.73 = 1,629.73/x
  3. Step 3: Cross multiply
    1,927.78x = 2,658.73 × 1,629.73
  4. Step 4: Simplify right side
    1,927.78x = 4,333,012.04
  5. Step 5: Solve for x
    x = 4,333,012.04/1,927.78
  6. Step 6: Final answer
    x = 2,247.67

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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.