Home / 1,603.60-2,403.27-1,189.49

Finding the Fourth Proportional to 1,603.60, 2,403.27 and 1,189.49

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Solution

The fourth proportional to 1,603.60, 2,403.27 and 1,189.49 is: 1,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603.60 : 2,403.27 = 1,189.49 : x
  2. Step 2: Convert to fraction form
    1,603.60/2,403.27 = 1,189.49/x
  3. Step 3: Cross multiply
    1,603.60x = 2,403.27 × 1,189.49
  4. Step 4: Simplify right side
    1,603.60x = 2,858,653.62
  5. Step 5: Solve for x
    x = 2,858,653.62/1,603.60
  6. Step 6: Final answer
    x = 1,782.65

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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.