Home / 1,921.46-2,876.28-1,401.33

Finding the Fourth Proportional to 1,921.46, 2,876.28 and 1,401.33

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Solution

The fourth proportional to 1,921.46, 2,876.28 and 1,401.33 is: 2,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.46 : 2,876.28 = 1,401.33 : x
  2. Step 2: Convert to fraction form
    1,921.46/2,876.28 = 1,401.33/x
  3. Step 3: Cross multiply
    1,921.46x = 2,876.28 × 1,401.33
  4. Step 4: Simplify right side
    1,921.46x = 4,030,617.45
  5. Step 5: Solve for x
    x = 4,030,617.45/1,921.46
  6. Step 6: Final answer
    x = 2,097.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.