Home / 1,353.80-2,029.44-623.96

Finding the Fourth Proportional to 1,353.80, 2,029.44 and 623.96

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Solution

The fourth proportional to 1,353.80, 2,029.44 and 623.96 is: 935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.80 : 2,029.44 = 623.96 : x
  2. Step 2: Convert to fraction form
    1,353.80/2,029.44 = 623.96/x
  3. Step 3: Cross multiply
    1,353.80x = 2,029.44 × 623.96
  4. Step 4: Simplify right side
    1,353.80x = 1,266,289.38
  5. Step 5: Solve for x
    x = 1,266,289.38/1,353.80
  6. Step 6: Final answer
    x = 935.36

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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.