Home / 1,208.24-1,812.04-342.60

Finding the Fourth Proportional to 1,208.24, 1,812.04 and 342.60

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Solution

The fourth proportional to 1,208.24, 1,812.04 and 342.60 is: 513.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208.24 : 1,812.04 = 342.60 : x
  2. Step 2: Convert to fraction form
    1,208.24/1,812.04 = 342.60/x
  3. Step 3: Cross multiply
    1,208.24x = 1,812.04 × 342.60
  4. Step 4: Simplify right side
    1,208.24x = 620,804.90
  5. Step 5: Solve for x
    x = 620,804.90/1,208.24
  6. Step 6: Final answer
    x = 513.81

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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.