Home / 1,921.38-2,885.31-1,749.66

Finding the Fourth Proportional to 1,921.38, 2,885.31 and 1,749.66

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Solution

The fourth proportional to 1,921.38, 2,885.31 and 1,749.66 is: 2,627.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.38 : 2,885.31 = 1,749.66 : x
  2. Step 2: Convert to fraction form
    1,921.38/2,885.31 = 1,749.66/x
  3. Step 3: Cross multiply
    1,921.38x = 2,885.31 × 1,749.66
  4. Step 4: Simplify right side
    1,921.38x = 5,048,288.32
  5. Step 5: Solve for x
    x = 5,048,288.32/1,921.38
  6. Step 6: Final answer
    x = 2,627.44

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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.