Home / 1,190.56-1,639.38-1,042.33

Finding the Fourth Proportional to 1,190.56, 1,639.38 and 1,042.33

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Solution

The fourth proportional to 1,190.56, 1,639.38 and 1,042.33 is: 1,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.56 : 1,639.38 = 1,042.33 : x
  2. Step 2: Convert to fraction form
    1,190.56/1,639.38 = 1,042.33/x
  3. Step 3: Cross multiply
    1,190.56x = 1,639.38 × 1,042.33
  4. Step 4: Simplify right side
    1,190.56x = 1,708,774.96
  5. Step 5: Solve for x
    x = 1,708,774.96/1,190.56
  6. Step 6: Final answer
    x = 1,435.27

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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.