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Finding the Fourth Proportional to 2,782.63, 3,840.14 and 1,523.62

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Solution

The fourth proportional to 2,782.63, 3,840.14 and 1,523.62 is: 2,102.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.63 : 3,840.14 = 1,523.62 : x
  2. Step 2: Convert to fraction form
    2,782.63/3,840.14 = 1,523.62/x
  3. Step 3: Cross multiply
    2,782.63x = 3,840.14 × 1,523.62
  4. Step 4: Simplify right side
    2,782.63x = 5,850,914.11
  5. Step 5: Solve for x
    x = 5,850,914.11/2,782.63
  6. Step 6: Final answer
    x = 2,102.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.