Home / 3,647.12-5,033.04-1,991.12

Finding the Fourth Proportional to 3,647.12, 5,033.04 and 1,991.12

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Solution

The fourth proportional to 3,647.12, 5,033.04 and 1,991.12 is: 2,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,647.12 : 5,033.04 = 1,991.12 : x
  2. Step 2: Convert to fraction form
    3,647.12/5,033.04 = 1,991.12/x
  3. Step 3: Cross multiply
    3,647.12x = 5,033.04 × 1,991.12
  4. Step 4: Simplify right side
    3,647.12x = 10,021,386.60
  5. Step 5: Solve for x
    x = 10,021,386.60/3,647.12
  6. Step 6: Final answer
    x = 2,747.75

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1.5x scale

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.