Home / 6,485.27-8,949.39-3,971.63

Finding the Fourth Proportional to 6,485.27, 8,949.39 and 3,971.63

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Solution

The fourth proportional to 6,485.27, 8,949.39 and 3,971.63 is: 5,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.27 : 8,949.39 = 3,971.63 : x
  2. Step 2: Convert to fraction form
    6,485.27/8,949.39 = 3,971.63/x
  3. Step 3: Cross multiply
    6,485.27x = 8,949.39 × 3,971.63
  4. Step 4: Simplify right side
    6,485.27x = 35,543,673.29
  5. Step 5: Solve for x
    x = 35,543,673.29/6,485.27
  6. Step 6: Final answer
    x = 5,480.68

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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.