Home / 7,355.28-11,033.76-3,405.60

Finding the Fourth Proportional to 7,355.28, 11,033.76 and 3,405.60

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Solution

The fourth proportional to 7,355.28, 11,033.76 and 3,405.60 is: 5,108.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,355.28 : 11,033.76 = 3,405.60 : x
  2. Step 2: Convert to fraction form
    7,355.28/11,033.76 = 3,405.60/x
  3. Step 3: Cross multiply
    7,355.28x = 11,033.76 × 3,405.60
  4. Step 4: Simplify right side
    7,355.28x = 37,576,573.06
  5. Step 5: Solve for x
    x = 37,576,573.06/7,355.28
  6. Step 6: Final answer
    x = 5,108.79

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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.