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Finding the Fourth Proportional to 1,815.90, 2,724.63 and 583.41

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Solution

The fourth proportional to 1,815.90, 2,724.63 and 583.41 is: 875.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.90 : 2,724.63 = 583.41 : x
  2. Step 2: Convert to fraction form
    1,815.90/2,724.63 = 583.41/x
  3. Step 3: Cross multiply
    1,815.90x = 2,724.63 × 583.41
  4. Step 4: Simplify right side
    1,815.90x = 1,589,576.39
  5. Step 5: Solve for x
    x = 1,589,576.39/1,815.90
  6. Step 6: Final answer
    x = 875.37

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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.