Home / 2,796.15-4,208.43-2,106.30

Finding the Fourth Proportional to 2,796.15, 4,208.43 and 2,106.30

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Solution

The fourth proportional to 2,796.15, 4,208.43 and 2,106.30 is: 3,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.15 : 4,208.43 = 2,106.30 : x
  2. Step 2: Convert to fraction form
    2,796.15/4,208.43 = 2,106.30/x
  3. Step 3: Cross multiply
    2,796.15x = 4,208.43 × 2,106.30
  4. Step 4: Simplify right side
    2,796.15x = 8,864,216.11
  5. Step 5: Solve for x
    x = 8,864,216.11/2,796.15
  6. Step 6: Final answer
    x = 3,170.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.