Home / 1,263.38-1,892.12-1,219.59

Finding the Fourth Proportional to 1,263.38, 1,892.12 and 1,219.59

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Solution

The fourth proportional to 1,263.38, 1,892.12 and 1,219.59 is: 1,826.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.38 : 1,892.12 = 1,219.59 : x
  2. Step 2: Convert to fraction form
    1,263.38/1,892.12 = 1,219.59/x
  3. Step 3: Cross multiply
    1,263.38x = 1,892.12 × 1,219.59
  4. Step 4: Simplify right side
    1,263.38x = 2,307,610.63
  5. Step 5: Solve for x
    x = 2,307,610.63/1,263.38
  6. Step 6: Final answer
    x = 1,826.54

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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.