Home / 7,728.02-11,589.06-2,796.38

Finding the Fourth Proportional to 7,728.02, 11,589.06 and 2,796.38

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Solution

The fourth proportional to 7,728.02, 11,589.06 and 2,796.38 is: 4,193.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.02 : 11,589.06 = 2,796.38 : x
  2. Step 2: Convert to fraction form
    7,728.02/11,589.06 = 2,796.38/x
  3. Step 3: Cross multiply
    7,728.02x = 11,589.06 × 2,796.38
  4. Step 4: Simplify right side
    7,728.02x = 32,407,415.60
  5. Step 5: Solve for x
    x = 32,407,415.60/7,728.02
  6. Step 6: Final answer
    x = 4,193.50

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Half scale
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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.