Home / 7,485.06-11,227.36-1,938.20

Finding the Fourth Proportional to 7,485.06, 11,227.36 and 1,938.20

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Solution

The fourth proportional to 7,485.06, 11,227.36 and 1,938.20 is: 2,907.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.06 : 11,227.36 = 1,938.20 : x
  2. Step 2: Convert to fraction form
    7,485.06/11,227.36 = 1,938.20/x
  3. Step 3: Cross multiply
    7,485.06x = 11,227.36 × 1,938.20
  4. Step 4: Simplify right side
    7,485.06x = 21,760,811.80
  5. Step 5: Solve for x
    x = 21,760,811.80/7,485.06
  6. Step 6: Final answer
    x = 2,907.23

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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.