Home / 1,927.89-2,893.68-1,401.21

Finding the Fourth Proportional to 1,927.89, 2,893.68 and 1,401.21

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Solution

The fourth proportional to 1,927.89, 2,893.68 and 1,401.21 is: 2,103.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.89 : 2,893.68 = 1,401.21 : x
  2. Step 2: Convert to fraction form
    1,927.89/2,893.68 = 1,401.21/x
  3. Step 3: Cross multiply
    1,927.89x = 2,893.68 × 1,401.21
  4. Step 4: Simplify right side
    1,927.89x = 4,054,653.35
  5. Step 5: Solve for x
    x = 4,054,653.35/1,927.89
  6. Step 6: Final answer
    x = 2,103.16

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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.