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Finding the Fourth Proportional to 1,582.82, 2,375.09 and 760.98

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Solution

The fourth proportional to 1,582.82, 2,375.09 and 760.98 is: 1,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.82 : 2,375.09 = 760.98 : x
  2. Step 2: Convert to fraction form
    1,582.82/2,375.09 = 760.98/x
  3. Step 3: Cross multiply
    1,582.82x = 2,375.09 × 760.98
  4. Step 4: Simplify right side
    1,582.82x = 1,807,392.18
  5. Step 5: Solve for x
    x = 1,807,392.18/1,582.82
  6. Step 6: Final answer
    x = 1,141.88

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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.