Home / 1,788.90-2,683.38-490.37

Finding the Fourth Proportional to 1,788.90, 2,683.38 and 490.37

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Solution

The fourth proportional to 1,788.90, 2,683.38 and 490.37 is: 735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.90 : 2,683.38 = 490.37 : x
  2. Step 2: Convert to fraction form
    1,788.90/2,683.38 = 490.37/x
  3. Step 3: Cross multiply
    1,788.90x = 2,683.38 × 490.37
  4. Step 4: Simplify right side
    1,788.90x = 1,315,837.47
  5. Step 5: Solve for x
    x = 1,315,837.47/1,788.90
  6. Step 6: Final answer
    x = 735.56

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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.