Home / 1,845.99-2,764.43-1,431.68

Finding the Fourth Proportional to 1,845.99, 2,764.43 and 1,431.68

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Solution

The fourth proportional to 1,845.99, 2,764.43 and 1,431.68 is: 2,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.99 : 2,764.43 = 1,431.68 : x
  2. Step 2: Convert to fraction form
    1,845.99/2,764.43 = 1,431.68/x
  3. Step 3: Cross multiply
    1,845.99x = 2,764.43 × 1,431.68
  4. Step 4: Simplify right side
    1,845.99x = 3,957,763.53
  5. Step 5: Solve for x
    x = 3,957,763.53/1,845.99
  6. Step 6: Final answer
    x = 2,143.98

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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.