Home / 9,217.07-13,825.60-2,978

Finding the Fourth Proportional to 9,217.07, 13,825.60 and 2,978

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Solution

The fourth proportional to 9,217.07, 13,825.60 and 2,978 is: 4,467.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,217.07 : 13,825.60 = 2,978 : x
  2. Step 2: Convert to fraction form
    9,217.07/13,825.60 = 2,978/x
  3. Step 3: Cross multiply
    9,217.07x = 13,825.60 × 2,978
  4. Step 4: Simplify right side
    9,217.07x = 41,172,636.80
  5. Step 5: Solve for x
    x = 41,172,636.80/9,217.07
  6. Step 6: Final answer
    x = 4,467.00

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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.