Home / 2,119.14-2,922.51-1,372.35

Finding the Fourth Proportional to 2,119.14, 2,922.51 and 1,372.35

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Solution

The fourth proportional to 2,119.14, 2,922.51 and 1,372.35 is: 1,892.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.14 : 2,922.51 = 1,372.35 : x
  2. Step 2: Convert to fraction form
    2,119.14/2,922.51 = 1,372.35/x
  3. Step 3: Cross multiply
    2,119.14x = 2,922.51 × 1,372.35
  4. Step 4: Simplify right side
    2,119.14x = 4,010,706.60
  5. Step 5: Solve for x
    x = 4,010,706.60/2,119.14
  6. Step 6: Final answer
    x = 1,892.61

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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.