Home / 1,208.11-1,663.81-1,042.24

Finding the Fourth Proportional to 1,208.11, 1,663.81 and 1,042.24

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Solution

The fourth proportional to 1,208.11, 1,663.81 and 1,042.24 is: 1,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208.11 : 1,663.81 = 1,042.24 : x
  2. Step 2: Convert to fraction form
    1,208.11/1,663.81 = 1,042.24/x
  3. Step 3: Cross multiply
    1,208.11x = 1,663.81 × 1,042.24
  4. Step 4: Simplify right side
    1,208.11x = 1,734,089.33
  5. Step 5: Solve for x
    x = 1,734,089.33/1,208.11
  6. Step 6: Final answer
    x = 1,435.37

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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.