Home / 3,115.58-4,676.74-2,771.12

Finding the Fourth Proportional to 3,115.58, 4,676.74 and 2,771.12

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Solution

The fourth proportional to 3,115.58, 4,676.74 and 2,771.12 is: 4,159.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.58 : 4,676.74 = 2,771.12 : x
  2. Step 2: Convert to fraction form
    3,115.58/4,676.74 = 2,771.12/x
  3. Step 3: Cross multiply
    3,115.58x = 4,676.74 × 2,771.12
  4. Step 4: Simplify right side
    3,115.58x = 12,959,812.51
  5. Step 5: Solve for x
    x = 12,959,812.51/3,115.58
  6. Step 6: Final answer
    x = 4,159.69

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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.