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Finding the Fourth Proportional to 3,395.04, 5,085.98 and 1,986.05

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Solution

The fourth proportional to 3,395.04, 5,085.98 and 1,986.05 is: 2,975.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.04 : 5,085.98 = 1,986.05 : x
  2. Step 2: Convert to fraction form
    3,395.04/5,085.98 = 1,986.05/x
  3. Step 3: Cross multiply
    3,395.04x = 5,085.98 × 1,986.05
  4. Step 4: Simplify right side
    3,395.04x = 10,100,982.67
  5. Step 5: Solve for x
    x = 10,100,982.67/3,395.04
  6. Step 6: Final answer
    x = 2,975.22

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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.