Home / 2,390.16-3,584.00-1,072.78

Finding the Fourth Proportional to 2,390.16, 3,584.00 and 1,072.78

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Solution

The fourth proportional to 2,390.16, 3,584.00 and 1,072.78 is: 1,608.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.16 : 3,584.00 = 1,072.78 : x
  2. Step 2: Convert to fraction form
    2,390.16/3,584.00 = 1,072.78/x
  3. Step 3: Cross multiply
    2,390.16x = 3,584.00 × 1,072.78
  4. Step 4: Simplify right side
    2,390.16x = 3,844,837.24
  5. Step 5: Solve for x
    x = 3,844,837.24/2,390.16
  6. Step 6: Final answer
    x = 1,608.61

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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.