Home / 4,078.02-5,627.69-2,399.49

Finding the Fourth Proportional to 4,078.02, 5,627.69 and 2,399.49

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Solution

The fourth proportional to 4,078.02, 5,627.69 and 2,399.49 is: 3,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.02 : 5,627.69 = 2,399.49 : x
  2. Step 2: Convert to fraction form
    4,078.02/5,627.69 = 2,399.49/x
  3. Step 3: Cross multiply
    4,078.02x = 5,627.69 × 2,399.49
  4. Step 4: Simplify right side
    4,078.02x = 13,503,585.88
  5. Step 5: Solve for x
    x = 13,503,585.88/4,078.02
  6. Step 6: Final answer
    x = 3,311.31

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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.