Home / 1,911-2,638.26-1,444.44

Finding the Fourth Proportional to 1,911, 2,638.26 and 1,444.44

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Solution

The fourth proportional to 1,911, 2,638.26 and 1,444.44 is: 1,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911 : 2,638.26 = 1,444.44 : x
  2. Step 2: Convert to fraction form
    1,911/2,638.26 = 1,444.44/x
  3. Step 3: Cross multiply
    1,911x = 2,638.26 × 1,444.44
  4. Step 4: Simplify right side
    1,911x = 3,810,808.27
  5. Step 5: Solve for x
    x = 3,810,808.27/1,911
  6. Step 6: Final answer
    x = 1,994.14

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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.