Home / 7,485.54-11,228.22-1,938.39

Finding the Fourth Proportional to 7,485.54, 11,228.22 and 1,938.39

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Solution

The fourth proportional to 7,485.54, 11,228.22 and 1,938.39 is: 2,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.54 : 11,228.22 = 1,938.39 : x
  2. Step 2: Convert to fraction form
    7,485.54/11,228.22 = 1,938.39/x
  3. Step 3: Cross multiply
    7,485.54x = 11,228.22 × 1,938.39
  4. Step 4: Simplify right side
    7,485.54x = 21,764,669.37
  5. Step 5: Solve for x
    x = 21,764,669.37/7,485.54
  6. Step 6: Final answer
    x = 2,907.56

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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.