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Finding the Fourth Proportional to 4,485.89, 6,724.47 and 2,512.47

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Solution

The fourth proportional to 4,485.89, 6,724.47 and 2,512.47 is: 3,766.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.89 : 6,724.47 = 2,512.47 : x
  2. Step 2: Convert to fraction form
    4,485.89/6,724.47 = 2,512.47/x
  3. Step 3: Cross multiply
    4,485.89x = 6,724.47 × 2,512.47
  4. Step 4: Simplify right side
    4,485.89x = 16,895,011.82
  5. Step 5: Solve for x
    x = 16,895,011.82/4,485.89
  6. Step 6: Final answer
    x = 3,766.25

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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.