Home / 4,485.50-6,728.25-1,561.75

Finding the Fourth Proportional to 4,485.50, 6,728.25 and 1,561.75

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Solution

The fourth proportional to 4,485.50, 6,728.25 and 1,561.75 is: 2,342.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.50 : 6,728.25 = 1,561.75 : x
  2. Step 2: Convert to fraction form
    4,485.50/6,728.25 = 1,561.75/x
  3. Step 3: Cross multiply
    4,485.50x = 6,728.25 × 1,561.75
  4. Step 4: Simplify right side
    4,485.50x = 10,507,844.44
  5. Step 5: Solve for x
    x = 10,507,844.44/4,485.50
  6. Step 6: Final answer
    x = 2,342.63

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Double scale
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Similar ratio
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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.