Home / 3,110.46-4,666.20-919.41

Finding the Fourth Proportional to 3,110.46, 4,666.20 and 919.41

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Solution

The fourth proportional to 3,110.46, 4,666.20 and 919.41 is: 1,379.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.46 : 4,666.20 = 919.41 : x
  2. Step 2: Convert to fraction form
    3,110.46/4,666.20 = 919.41/x
  3. Step 3: Cross multiply
    3,110.46x = 4,666.20 × 919.41
  4. Step 4: Simplify right side
    3,110.46x = 4,290,146.34
  5. Step 5: Solve for x
    x = 4,290,146.34/3,110.46
  6. Step 6: Final answer
    x = 1,379.26

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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.