Home / 6,147.37-9,221.96-1,986.00

Finding the Fourth Proportional to 6,147.37, 9,221.96 and 1,986.00

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Solution

The fourth proportional to 6,147.37, 9,221.96 and 1,986.00 is: 2,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147.37 : 9,221.96 = 1,986.00 : x
  2. Step 2: Convert to fraction form
    6,147.37/9,221.96 = 1,986.00/x
  3. Step 3: Cross multiply
    6,147.37x = 9,221.96 × 1,986.00
  4. Step 4: Simplify right side
    6,147.37x = 18,314,782.94
  5. Step 5: Solve for x
    x = 18,314,782.94/6,147.37
  6. Step 6: Final answer
    x = 2,979.29

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1.5x scale

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.