Home / 3,110.24-4,665.40-919.01

Finding the Fourth Proportional to 3,110.24, 4,665.40 and 919.01

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Solution

The fourth proportional to 3,110.24, 4,665.40 and 919.01 is: 1,378.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.24 : 4,665.40 = 919.01 : x
  2. Step 2: Convert to fraction form
    3,110.24/4,665.40 = 919.01/x
  3. Step 3: Cross multiply
    3,110.24x = 4,665.40 × 919.01
  4. Step 4: Simplify right side
    3,110.24x = 4,287,558.62
  5. Step 5: Solve for x
    x = 4,287,558.62/3,110.24
  6. Step 6: Final answer
    x = 1,378.53

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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.