Home / 1,620.96-2,418.22-1,576.32

Finding the Fourth Proportional to 1,620.96, 2,418.22 and 1,576.32

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Solution

The fourth proportional to 1,620.96, 2,418.22 and 1,576.32 is: 2,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.96 : 2,418.22 = 1,576.32 : x
  2. Step 2: Convert to fraction form
    1,620.96/2,418.22 = 1,576.32/x
  3. Step 3: Cross multiply
    1,620.96x = 2,418.22 × 1,576.32
  4. Step 4: Simplify right side
    1,620.96x = 3,811,888.55
  5. Step 5: Solve for x
    x = 3,811,888.55/1,620.96
  6. Step 6: Final answer
    x = 2,351.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.