Home / 9,189.20-13,783.80-2,615.60

Finding the Fourth Proportional to 9,189.20, 13,783.80 and 2,615.60

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Solution

The fourth proportional to 9,189.20, 13,783.80 and 2,615.60 is: 3,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.20 : 13,783.80 = 2,615.60 : x
  2. Step 2: Convert to fraction form
    9,189.20/13,783.80 = 2,615.60/x
  3. Step 3: Cross multiply
    9,189.20x = 13,783.80 × 2,615.60
  4. Step 4: Simplify right side
    9,189.20x = 36,052,907.28
  5. Step 5: Solve for x
    x = 36,052,907.28/9,189.20
  6. Step 6: Final answer
    x = 3,923.40

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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.