Home / 7,603.20-11,409.36-3,220.48

Finding the Fourth Proportional to 7,603.20, 11,409.36 and 3,220.48

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Solution

The fourth proportional to 7,603.20, 11,409.36 and 3,220.48 is: 4,832.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.20 : 11,409.36 = 3,220.48 : x
  2. Step 2: Convert to fraction form
    7,603.20/11,409.36 = 3,220.48/x
  3. Step 3: Cross multiply
    7,603.20x = 11,409.36 × 3,220.48
  4. Step 4: Simplify right side
    7,603.20x = 36,743,615.69
  5. Step 5: Solve for x
    x = 36,743,615.69/7,603.20
  6. Step 6: Final answer
    x = 4,832.65

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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.