Home / 7,656.21-11,485.40-2,724.39

Finding the Fourth Proportional to 7,656.21, 11,485.40 and 2,724.39

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Solution

The fourth proportional to 7,656.21, 11,485.40 and 2,724.39 is: 4,086.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,656.21 : 11,485.40 = 2,724.39 : x
  2. Step 2: Convert to fraction form
    7,656.21/11,485.40 = 2,724.39/x
  3. Step 3: Cross multiply
    7,656.21x = 11,485.40 × 2,724.39
  4. Step 4: Simplify right side
    7,656.21x = 31,290,695.28
  5. Step 5: Solve for x
    x = 31,290,695.28/7,656.21
  6. Step 6: Final answer
    x = 4,086.97

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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.