Home / 3,653.40-5,480.68-1,188.02

Finding the Fourth Proportional to 3,653.40, 5,480.68 and 1,188.02

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Solution

The fourth proportional to 3,653.40, 5,480.68 and 1,188.02 is: 1,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.40 : 5,480.68 = 1,188.02 : x
  2. Step 2: Convert to fraction form
    3,653.40/5,480.68 = 1,188.02/x
  3. Step 3: Cross multiply
    3,653.40x = 5,480.68 × 1,188.02
  4. Step 4: Simplify right side
    3,653.40x = 6,511,157.45
  5. Step 5: Solve for x
    x = 6,511,157.45/3,653.40
  6. Step 6: Final answer
    x = 1,782.22

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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.