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Finding the Fourth Proportional to 5,908.60, 8,860.80 and 2,615.80

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Solution

The fourth proportional to 5,908.60, 8,860.80 and 2,615.80 is: 3,922.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,908.60 : 8,860.80 = 2,615.80 : x
  2. Step 2: Convert to fraction form
    5,908.60/8,860.80 = 2,615.80/x
  3. Step 3: Cross multiply
    5,908.60x = 8,860.80 × 2,615.80
  4. Step 4: Simplify right side
    5,908.60x = 23,178,080.64
  5. Step 5: Solve for x
    x = 23,178,080.64/5,908.60
  6. Step 6: Final answer
    x = 3,922.77

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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.