Home / 2,415.20-3,620.92-1,464.64

Finding the Fourth Proportional to 2,415.20, 3,620.92 and 1,464.64

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Solution

The fourth proportional to 2,415.20, 3,620.92 and 1,464.64 is: 2,195.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.20 : 3,620.92 = 1,464.64 : x
  2. Step 2: Convert to fraction form
    2,415.20/3,620.92 = 1,464.64/x
  3. Step 3: Cross multiply
    2,415.20x = 3,620.92 × 1,464.64
  4. Step 4: Simplify right side
    2,415.20x = 5,303,344.27
  5. Step 5: Solve for x
    x = 5,303,344.27/2,415.20
  6. Step 6: Final answer
    x = 2,195.82

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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.