Home / 2,827.68-4,238.43-2,415.57

Finding the Fourth Proportional to 2,827.68, 4,238.43 and 2,415.57

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Solution

The fourth proportional to 2,827.68, 4,238.43 and 2,415.57 is: 3,620.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.68 : 4,238.43 = 2,415.57 : x
  2. Step 2: Convert to fraction form
    2,827.68/4,238.43 = 2,415.57/x
  3. Step 3: Cross multiply
    2,827.68x = 4,238.43 × 2,415.57
  4. Step 4: Simplify right side
    2,827.68x = 10,238,224.36
  5. Step 5: Solve for x
    x = 10,238,224.36/2,827.68
  6. Step 6: Final answer
    x = 3,620.72

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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.