Home / 2,796.56-3,858.36-1,617.20

Finding the Fourth Proportional to 2,796.56, 3,858.36 and 1,617.20

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Solution

The fourth proportional to 2,796.56, 3,858.36 and 1,617.20 is: 2,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.56 : 3,858.36 = 1,617.20 : x
  2. Step 2: Convert to fraction form
    2,796.56/3,858.36 = 1,617.20/x
  3. Step 3: Cross multiply
    2,796.56x = 3,858.36 × 1,617.20
  4. Step 4: Simplify right side
    2,796.56x = 6,239,739.79
  5. Step 5: Solve for x
    x = 6,239,739.79/2,796.56
  6. Step 6: Final answer
    x = 2,231.22

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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.