Home / 1,989.48-2,745.82-1,150.04

Finding the Fourth Proportional to 1,989.48, 2,745.82 and 1,150.04

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Solution

The fourth proportional to 1,989.48, 2,745.82 and 1,150.04 is: 1,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.48 : 2,745.82 = 1,150.04 : x
  2. Step 2: Convert to fraction form
    1,989.48/2,745.82 = 1,150.04/x
  3. Step 3: Cross multiply
    1,989.48x = 2,745.82 × 1,150.04
  4. Step 4: Simplify right side
    1,989.48x = 3,157,811.13
  5. Step 5: Solve for x
    x = 3,157,811.13/1,989.48
  6. Step 6: Final answer
    x = 1,587.25

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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.