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Finding the Fourth Proportional to 1,684.62, 2,527.56 and 1,069.92

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Solution

The fourth proportional to 1,684.62, 2,527.56 and 1,069.92 is: 1,605.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.62 : 2,527.56 = 1,069.92 : x
  2. Step 2: Convert to fraction form
    1,684.62/2,527.56 = 1,069.92/x
  3. Step 3: Cross multiply
    1,684.62x = 2,527.56 × 1,069.92
  4. Step 4: Simplify right side
    1,684.62x = 2,704,287.00
  5. Step 5: Solve for x
    x = 2,704,287.00/1,684.62
  6. Step 6: Final answer
    x = 1,605.28

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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.