Home / 2,415.88-3,620.76-1,376.38

Finding the Fourth Proportional to 2,415.88, 3,620.76 and 1,376.38

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Solution

The fourth proportional to 2,415.88, 3,620.76 and 1,376.38 is: 2,062.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.88 : 3,620.76 = 1,376.38 : x
  2. Step 2: Convert to fraction form
    2,415.88/3,620.76 = 1,376.38/x
  3. Step 3: Cross multiply
    2,415.88x = 3,620.76 × 1,376.38
  4. Step 4: Simplify right side
    2,415.88x = 4,983,541.65
  5. Step 5: Solve for x
    x = 4,983,541.65/2,415.88
  6. Step 6: Final answer
    x = 2,062.83

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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.