Home / 6,319.66-8,716.43-4,640.54

Finding the Fourth Proportional to 6,319.66, 8,716.43 and 4,640.54

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Solution

The fourth proportional to 6,319.66, 8,716.43 and 4,640.54 is: 6,400.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.66 : 8,716.43 = 4,640.54 : x
  2. Step 2: Convert to fraction form
    6,319.66/8,716.43 = 4,640.54/x
  3. Step 3: Cross multiply
    6,319.66x = 8,716.43 × 4,640.54
  4. Step 4: Simplify right side
    6,319.66x = 40,448,942.07
  5. Step 5: Solve for x
    x = 40,448,942.07/6,319.66
  6. Step 6: Final answer
    x = 6,400.49

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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.