Home / 3,419.01-4,720.41-2,160.54

Finding the Fourth Proportional to 3,419.01, 4,720.41 and 2,160.54

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Solution

The fourth proportional to 3,419.01, 4,720.41 and 2,160.54 is: 2,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.01 : 4,720.41 = 2,160.54 : x
  2. Step 2: Convert to fraction form
    3,419.01/4,720.41 = 2,160.54/x
  3. Step 3: Cross multiply
    3,419.01x = 4,720.41 × 2,160.54
  4. Step 4: Simplify right side
    3,419.01x = 10,198,634.62
  5. Step 5: Solve for x
    x = 10,198,634.62/3,419.01
  6. Step 6: Final answer
    x = 2,982.92

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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.