Home / 3,100.21-4,278.08-1,773.90

Finding the Fourth Proportional to 3,100.21, 4,278.08 and 1,773.90

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Solution

The fourth proportional to 3,100.21, 4,278.08 and 1,773.90 is: 2,447.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.21 : 4,278.08 = 1,773.90 : x
  2. Step 2: Convert to fraction form
    3,100.21/4,278.08 = 1,773.90/x
  3. Step 3: Cross multiply
    3,100.21x = 4,278.08 × 1,773.90
  4. Step 4: Simplify right side
    3,100.21x = 7,588,890.55
  5. Step 5: Solve for x
    x = 7,588,890.55/3,100.21
  6. Step 6: Final answer
    x = 2,447.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.