Home / 3,409.38-5,110.29-1,945.31

Finding the Fourth Proportional to 3,409.38, 5,110.29 and 1,945.31

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Solution

The fourth proportional to 3,409.38, 5,110.29 and 1,945.31 is: 2,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.38 : 5,110.29 = 1,945.31 : x
  2. Step 2: Convert to fraction form
    3,409.38/5,110.29 = 1,945.31/x
  3. Step 3: Cross multiply
    3,409.38x = 5,110.29 × 1,945.31
  4. Step 4: Simplify right side
    3,409.38x = 9,941,072.69
  5. Step 5: Solve for x
    x = 9,941,072.69/3,409.38
  6. Step 6: Final answer
    x = 2,915.80

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1.5x scale

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.