Home / 4,255.45-5,872.51-2,486.70

Finding the Fourth Proportional to 4,255.45, 5,872.51 and 2,486.70

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Solution

The fourth proportional to 4,255.45, 5,872.51 and 2,486.70 is: 3,431.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,255.45 : 5,872.51 = 2,486.70 : x
  2. Step 2: Convert to fraction form
    4,255.45/5,872.51 = 2,486.70/x
  3. Step 3: Cross multiply
    4,255.45x = 5,872.51 × 2,486.70
  4. Step 4: Simplify right side
    4,255.45x = 14,603,179.08
  5. Step 5: Solve for x
    x = 14,603,179.08/4,255.45
  6. Step 6: Final answer
    x = 3,431.64

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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.