Home / 2,255.64-3,389.60-1,216.41

Finding the Fourth Proportional to 2,255.64, 3,389.60 and 1,216.41

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Solution

The fourth proportional to 2,255.64, 3,389.60 and 1,216.41 is: 1,827.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255.64 : 3,389.60 = 1,216.41 : x
  2. Step 2: Convert to fraction form
    2,255.64/3,389.60 = 1,216.41/x
  3. Step 3: Cross multiply
    2,255.64x = 3,389.60 × 1,216.41
  4. Step 4: Simplify right side
    2,255.64x = 4,123,143.34
  5. Step 5: Solve for x
    x = 4,123,143.34/2,255.64
  6. Step 6: Final answer
    x = 1,827.93

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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.