Home / 1,336.14-2,005.56-1,238.94

Finding the Fourth Proportional to 1,336.14, 2,005.56 and 1,238.94

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Solution

The fourth proportional to 1,336.14, 2,005.56 and 1,238.94 is: 1,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.14 : 2,005.56 = 1,238.94 : x
  2. Step 2: Convert to fraction form
    1,336.14/2,005.56 = 1,238.94/x
  3. Step 3: Cross multiply
    1,336.14x = 2,005.56 × 1,238.94
  4. Step 4: Simplify right side
    1,336.14x = 2,484,768.51
  5. Step 5: Solve for x
    x = 2,484,768.51/1,336.14
  6. Step 6: Final answer
    x = 1,859.66

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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.