Home / 4,078.10-5,627.45-2,399.57

Finding the Fourth Proportional to 4,078.10, 5,627.45 and 2,399.57

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Solution

The fourth proportional to 4,078.10, 5,627.45 and 2,399.57 is: 3,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.10 : 5,627.45 = 2,399.57 : x
  2. Step 2: Convert to fraction form
    4,078.10/5,627.45 = 2,399.57/x
  3. Step 3: Cross multiply
    4,078.10x = 5,627.45 × 2,399.57
  4. Step 4: Simplify right side
    4,078.10x = 13,503,460.20
  5. Step 5: Solve for x
    x = 13,503,460.20/4,078.10
  6. Step 6: Final answer
    x = 3,311.21

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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.