Home / 2,157.69-3,229.78-1,486.68

Finding the Fourth Proportional to 2,157.69, 3,229.78 and 1,486.68

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Solution

The fourth proportional to 2,157.69, 3,229.78 and 1,486.68 is: 2,225.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.69 : 3,229.78 = 1,486.68 : x
  2. Step 2: Convert to fraction form
    2,157.69/3,229.78 = 1,486.68/x
  3. Step 3: Cross multiply
    2,157.69x = 3,229.78 × 1,486.68
  4. Step 4: Simplify right side
    2,157.69x = 4,801,649.33
  5. Step 5: Solve for x
    x = 4,801,649.33/2,157.69
  6. Step 6: Final answer
    x = 2,225.37

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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.