Home / 2,638.54-3,955.74-1,814.37

Finding the Fourth Proportional to 2,638.54, 3,955.74 and 1,814.37

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Solution

The fourth proportional to 2,638.54, 3,955.74 and 1,814.37 is: 2,720.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638.54 : 3,955.74 = 1,814.37 : x
  2. Step 2: Convert to fraction form
    2,638.54/3,955.74 = 1,814.37/x
  3. Step 3: Cross multiply
    2,638.54x = 3,955.74 × 1,814.37
  4. Step 4: Simplify right side
    2,638.54x = 7,177,175.98
  5. Step 5: Solve for x
    x = 7,177,175.98/2,638.54
  6. Step 6: Final answer
    x = 2,720.13

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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.