Home / 1,243.38-1,865.25-377.58

Finding the Fourth Proportional to 1,243.38, 1,865.25 and 377.58

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Solution

The fourth proportional to 1,243.38, 1,865.25 and 377.58 is: 566.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243.38 : 1,865.25 = 377.58 : x
  2. Step 2: Convert to fraction form
    1,243.38/1,865.25 = 377.58/x
  3. Step 3: Cross multiply
    1,243.38x = 1,865.25 × 377.58
  4. Step 4: Simplify right side
    1,243.38x = 704,281.10
  5. Step 5: Solve for x
    x = 704,281.10/1,243.38
  6. Step 6: Final answer
    x = 566.42

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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.