Home / 3,655.25-5,480.14-1,188.60

Finding the Fourth Proportional to 3,655.25, 5,480.14 and 1,188.60

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Solution

The fourth proportional to 3,655.25, 5,480.14 and 1,188.60 is: 1,782.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.25 : 5,480.14 = 1,188.60 : x
  2. Step 2: Convert to fraction form
    3,655.25/5,480.14 = 1,188.60/x
  3. Step 3: Cross multiply
    3,655.25x = 5,480.14 × 1,188.60
  4. Step 4: Simplify right side
    3,655.25x = 6,513,694.40
  5. Step 5: Solve for x
    x = 6,513,694.40/3,655.25
  6. Step 6: Final answer
    x = 1,782.01

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.