Home / 2,261.36-3,120.54-1,266.62

Finding the Fourth Proportional to 2,261.36, 3,120.54 and 1,266.62

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Solution

The fourth proportional to 2,261.36, 3,120.54 and 1,266.62 is: 1,747.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.36 : 3,120.54 = 1,266.62 : x
  2. Step 2: Convert to fraction form
    2,261.36/3,120.54 = 1,266.62/x
  3. Step 3: Cross multiply
    2,261.36x = 3,120.54 × 1,266.62
  4. Step 4: Simplify right side
    2,261.36x = 3,952,538.37
  5. Step 5: Solve for x
    x = 3,952,538.37/2,261.36
  6. Step 6: Final answer
    x = 1,747.86

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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.