Home / 2,721.36-3,756.62-1,838.36

Finding the Fourth Proportional to 2,721.36, 3,756.62 and 1,838.36

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Solution

The fourth proportional to 2,721.36, 3,756.62 and 1,838.36 is: 2,537.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.36 : 3,756.62 = 1,838.36 : x
  2. Step 2: Convert to fraction form
    2,721.36/3,756.62 = 1,838.36/x
  3. Step 3: Cross multiply
    2,721.36x = 3,756.62 × 1,838.36
  4. Step 4: Simplify right side
    2,721.36x = 6,906,009.35
  5. Step 5: Solve for x
    x = 6,906,009.35/2,721.36
  6. Step 6: Final answer
    x = 2,537.71

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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.