Home / 2,051.36-3,071.64-1,227.68

Finding the Fourth Proportional to 2,051.36, 3,071.64 and 1,227.68

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Solution

The fourth proportional to 2,051.36, 3,071.64 and 1,227.68 is: 1,838.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,051.36 : 3,071.64 = 1,227.68 : x
  2. Step 2: Convert to fraction form
    2,051.36/3,071.64 = 1,227.68/x
  3. Step 3: Cross multiply
    2,051.36x = 3,071.64 × 1,227.68
  4. Step 4: Simplify right side
    2,051.36x = 3,770,991.00
  5. Step 5: Solve for x
    x = 3,770,991.00/2,051.36
  6. Step 6: Final answer
    x = 1,838.29

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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.