Home / 4,078.12-5,627.54-2,399.21

Finding the Fourth Proportional to 4,078.12, 5,627.54 and 2,399.21

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Solution

The fourth proportional to 4,078.12, 5,627.54 and 2,399.21 is: 3,310.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.12 : 5,627.54 = 2,399.21 : x
  2. Step 2: Convert to fraction form
    4,078.12/5,627.54 = 2,399.21/x
  3. Step 3: Cross multiply
    4,078.12x = 5,627.54 × 2,399.21
  4. Step 4: Simplify right side
    4,078.12x = 13,501,628.10
  5. Step 5: Solve for x
    x = 13,501,628.10/4,078.12
  6. Step 6: Final answer
    x = 3,310.75

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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.