Home / 6,485.73-8,949.06-3,968.39

Finding the Fourth Proportional to 6,485.73, 8,949.06 and 3,968.39

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Solution

The fourth proportional to 6,485.73, 8,949.06 and 3,968.39 is: 5,475.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.73 : 8,949.06 = 3,968.39 : x
  2. Step 2: Convert to fraction form
    6,485.73/8,949.06 = 3,968.39/x
  3. Step 3: Cross multiply
    6,485.73x = 8,949.06 × 3,968.39
  4. Step 4: Simplify right side
    6,485.73x = 35,513,315.47
  5. Step 5: Solve for x
    x = 35,513,315.47/6,485.73
  6. Step 6: Final answer
    x = 5,475.61

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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.