Home / 6,945.89-9,585.36-3,961.80

Finding the Fourth Proportional to 6,945.89, 9,585.36 and 3,961.80

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Solution

The fourth proportional to 6,945.89, 9,585.36 and 3,961.80 is: 5,467.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.89 : 9,585.36 = 3,961.80 : x
  2. Step 2: Convert to fraction form
    6,945.89/9,585.36 = 3,961.80/x
  3. Step 3: Cross multiply
    6,945.89x = 9,585.36 × 3,961.80
  4. Step 4: Simplify right side
    6,945.89x = 37,975,279.25
  5. Step 5: Solve for x
    x = 37,975,279.25/6,945.89
  6. Step 6: Final answer
    x = 5,467.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.