Home / 7,661.08-11,492.72-2,729.28

Finding the Fourth Proportional to 7,661.08, 11,492.72 and 2,729.28

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Solution

The fourth proportional to 7,661.08, 11,492.72 and 2,729.28 is: 4,094.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.08 : 11,492.72 = 2,729.28 : x
  2. Step 2: Convert to fraction form
    7,661.08/11,492.72 = 2,729.28/x
  3. Step 3: Cross multiply
    7,661.08x = 11,492.72 × 2,729.28
  4. Step 4: Simplify right side
    7,661.08x = 31,366,850.84
  5. Step 5: Solve for x
    x = 31,366,850.84/7,661.08
  6. Step 6: Final answer
    x = 4,094.31

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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.