Home / 7,540.32-11,311.52-2,608.64

Finding the Fourth Proportional to 7,540.32, 11,311.52 and 2,608.64

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Solution

The fourth proportional to 7,540.32, 11,311.52 and 2,608.64 is: 3,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.32 : 11,311.52 = 2,608.64 : x
  2. Step 2: Convert to fraction form
    7,540.32/11,311.52 = 2,608.64/x
  3. Step 3: Cross multiply
    7,540.32x = 11,311.52 × 2,608.64
  4. Step 4: Simplify right side
    7,540.32x = 29,507,683.53
  5. Step 5: Solve for x
    x = 29,507,683.53/7,540.32
  6. Step 6: Final answer
    x = 3,913.32

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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.