Home / 1,263.38-1,743.64-1,208.03

Finding the Fourth Proportional to 1,263.38, 1,743.64 and 1,208.03

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Solution

The fourth proportional to 1,263.38, 1,743.64 and 1,208.03 is: 1,667.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.38 : 1,743.64 = 1,208.03 : x
  2. Step 2: Convert to fraction form
    1,263.38/1,743.64 = 1,208.03/x
  3. Step 3: Cross multiply
    1,263.38x = 1,743.64 × 1,208.03
  4. Step 4: Simplify right side
    1,263.38x = 2,106,357.69
  5. Step 5: Solve for x
    x = 2,106,357.69/1,263.38
  6. Step 6: Final answer
    x = 1,667.25

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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.