Home / 2,810.68-4,213.58-1,078.09

Finding the Fourth Proportional to 2,810.68, 4,213.58 and 1,078.09

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Solution

The fourth proportional to 2,810.68, 4,213.58 and 1,078.09 is: 1,616.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.68 : 4,213.58 = 1,078.09 : x
  2. Step 2: Convert to fraction form
    2,810.68/4,213.58 = 1,078.09/x
  3. Step 3: Cross multiply
    2,810.68x = 4,213.58 × 1,078.09
  4. Step 4: Simplify right side
    2,810.68x = 4,542,618.46
  5. Step 5: Solve for x
    x = 4,542,618.46/2,810.68
  6. Step 6: Final answer
    x = 1,616.20

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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.