Home / 6,147.44-9,220.06-1,987.28

Finding the Fourth Proportional to 6,147.44, 9,220.06 and 1,987.28

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Solution

The fourth proportional to 6,147.44, 9,220.06 and 1,987.28 is: 2,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147.44 : 9,220.06 = 1,987.28 : x
  2. Step 2: Convert to fraction form
    6,147.44/9,220.06 = 1,987.28/x
  3. Step 3: Cross multiply
    6,147.44x = 9,220.06 × 1,987.28
  4. Step 4: Simplify right side
    6,147.44x = 18,322,840.84
  5. Step 5: Solve for x
    x = 18,322,840.84/6,147.44
  6. Step 6: Final answer
    x = 2,980.56

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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.