Home / 2,188.08-3,287.34-1,830.78

Finding the Fourth Proportional to 2,188.08, 3,287.34 and 1,830.78

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Solution

The fourth proportional to 2,188.08, 3,287.34 and 1,830.78 is: 2,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.08 : 3,287.34 = 1,830.78 : x
  2. Step 2: Convert to fraction form
    2,188.08/3,287.34 = 1,830.78/x
  3. Step 3: Cross multiply
    2,188.08x = 3,287.34 × 1,830.78
  4. Step 4: Simplify right side
    2,188.08x = 6,018,396.33
  5. Step 5: Solve for x
    x = 6,018,396.33/2,188.08
  6. Step 6: Final answer
    x = 2,750.54

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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.