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Finding the Fourth Proportional to 8,975.64, 13,465.60 and 2,819.64

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Solution

The fourth proportional to 8,975.64, 13,465.60 and 2,819.64 is: 4,230.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.64 : 13,465.60 = 2,819.64 : x
  2. Step 2: Convert to fraction form
    8,975.64/13,465.60 = 2,819.64/x
  3. Step 3: Cross multiply
    8,975.64x = 13,465.60 × 2,819.64
  4. Step 4: Simplify right side
    8,975.64x = 37,968,144.38
  5. Step 5: Solve for x
    x = 37,968,144.38/8,975.64
  6. Step 6: Final answer
    x = 4,230.13

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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.