Home / 3,851.10-5,310.25-2,786.76

Finding the Fourth Proportional to 3,851.10, 5,310.25 and 2,786.76

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Solution

The fourth proportional to 3,851.10, 5,310.25 and 2,786.76 is: 3,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.10 : 5,310.25 = 2,786.76 : x
  2. Step 2: Convert to fraction form
    3,851.10/5,310.25 = 2,786.76/x
  3. Step 3: Cross multiply
    3,851.10x = 5,310.25 × 2,786.76
  4. Step 4: Simplify right side
    3,851.10x = 14,798,385.32
  5. Step 5: Solve for x
    x = 14,798,385.32/3,851.10
  6. Step 6: Final answer
    x = 3,842.64

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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.