Home / 3,419.64-4,720.28-2,003.78

Finding the Fourth Proportional to 3,419.64, 4,720.28 and 2,003.78

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Solution

The fourth proportional to 3,419.64, 4,720.28 and 2,003.78 is: 2,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.64 : 4,720.28 = 2,003.78 : x
  2. Step 2: Convert to fraction form
    3,419.64/4,720.28 = 2,003.78/x
  3. Step 3: Cross multiply
    3,419.64x = 4,720.28 × 2,003.78
  4. Step 4: Simplify right side
    3,419.64x = 9,458,404.44
  5. Step 5: Solve for x
    x = 9,458,404.44/3,419.64
  6. Step 6: Final answer
    x = 2,765.91

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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.