Home / 3,884.55-5,355.68-2,823.86

Finding the Fourth Proportional to 3,884.55, 5,355.68 and 2,823.86

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Solution

The fourth proportional to 3,884.55, 5,355.68 and 2,823.86 is: 3,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.55 : 5,355.68 = 2,823.86 : x
  2. Step 2: Convert to fraction form
    3,884.55/5,355.68 = 2,823.86/x
  3. Step 3: Cross multiply
    3,884.55x = 5,355.68 × 2,823.86
  4. Step 4: Simplify right side
    3,884.55x = 15,123,649.63
  5. Step 5: Solve for x
    x = 15,123,649.63/3,884.55
  6. Step 6: Final answer
    x = 3,893.28

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1.5x scale

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.