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Finding the Fourth Proportional to 1,203.07, 1,804.61 and 984.37

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Solution

The fourth proportional to 1,203.07, 1,804.61 and 984.37 is: 1,476.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.07 : 1,804.61 = 984.37 : x
  2. Step 2: Convert to fraction form
    1,203.07/1,804.61 = 984.37/x
  3. Step 3: Cross multiply
    1,203.07x = 1,804.61 × 984.37
  4. Step 4: Simplify right side
    1,203.07x = 1,776,403.95
  5. Step 5: Solve for x
    x = 1,776,403.95/1,203.07
  6. Step 6: Final answer
    x = 1,476.56

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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.