Home / 2,299.78-3,174.42-1,355.52

Finding the Fourth Proportional to 2,299.78, 3,174.42 and 1,355.52

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Solution

The fourth proportional to 2,299.78, 3,174.42 and 1,355.52 is: 1,871.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.78 : 3,174.42 = 1,355.52 : x
  2. Step 2: Convert to fraction form
    2,299.78/3,174.42 = 1,355.52/x
  3. Step 3: Cross multiply
    2,299.78x = 3,174.42 × 1,355.52
  4. Step 4: Simplify right side
    2,299.78x = 4,302,989.80
  5. Step 5: Solve for x
    x = 4,302,989.80/2,299.78
  6. Step 6: Final answer
    x = 1,871.04

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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.