Home / 4,085.78-6,126.20-2,771.16

Finding the Fourth Proportional to 4,085.78, 6,126.20 and 2,771.16

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Solution

The fourth proportional to 4,085.78, 6,126.20 and 2,771.16 is: 4,155.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.78 : 6,126.20 = 2,771.16 : x
  2. Step 2: Convert to fraction form
    4,085.78/6,126.20 = 2,771.16/x
  3. Step 3: Cross multiply
    4,085.78x = 6,126.20 × 2,771.16
  4. Step 4: Simplify right side
    4,085.78x = 16,976,680.39
  5. Step 5: Solve for x
    x = 16,976,680.39/4,085.78
  6. Step 6: Final answer
    x = 4,155.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.