Home / 1,623.03-2,435.40-745.80

Finding the Fourth Proportional to 1,623.03, 2,435.40 and 745.80

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Solution

The fourth proportional to 1,623.03, 2,435.40 and 745.80 is: 1,119.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.03 : 2,435.40 = 745.80 : x
  2. Step 2: Convert to fraction form
    1,623.03/2,435.40 = 745.80/x
  3. Step 3: Cross multiply
    1,623.03x = 2,435.40 × 745.80
  4. Step 4: Simplify right side
    1,623.03x = 1,816,321.32
  5. Step 5: Solve for x
    x = 1,816,321.32/1,623.03
  6. Step 6: Final answer
    x = 1,119.09

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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.