Home / 3,108.60-4,662.81-917.37

Finding the Fourth Proportional to 3,108.60, 4,662.81 and 917.37

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Solution

The fourth proportional to 3,108.60, 4,662.81 and 917.37 is: 1,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.60 : 4,662.81 = 917.37 : x
  2. Step 2: Convert to fraction form
    3,108.60/4,662.81 = 917.37/x
  3. Step 3: Cross multiply
    3,108.60x = 4,662.81 × 917.37
  4. Step 4: Simplify right side
    3,108.60x = 4,277,522.01
  5. Step 5: Solve for x
    x = 4,277,522.01/3,108.60
  6. Step 6: Final answer
    x = 1,376.03

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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.