Home / 4,111.21-6,167.72-1,918.74

Finding the Fourth Proportional to 4,111.21, 6,167.72 and 1,918.74

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Solution

The fourth proportional to 4,111.21, 6,167.72 and 1,918.74 is: 2,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.21 : 6,167.72 = 1,918.74 : x
  2. Step 2: Convert to fraction form
    4,111.21/6,167.72 = 1,918.74/x
  3. Step 3: Cross multiply
    4,111.21x = 6,167.72 × 1,918.74
  4. Step 4: Simplify right side
    4,111.21x = 11,834,255.87
  5. Step 5: Solve for x
    x = 11,834,255.87/4,111.21
  6. Step 6: Final answer
    x = 2,878.54

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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.