Home / 2,728.68-4,089.69-2,077.44

Finding the Fourth Proportional to 2,728.68, 4,089.69 and 2,077.44

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Solution

The fourth proportional to 2,728.68, 4,089.69 and 2,077.44 is: 3,113.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.68 : 4,089.69 = 2,077.44 : x
  2. Step 2: Convert to fraction form
    2,728.68/4,089.69 = 2,077.44/x
  3. Step 3: Cross multiply
    2,728.68x = 4,089.69 × 2,077.44
  4. Step 4: Simplify right side
    2,728.68x = 8,496,085.59
  5. Step 5: Solve for x
    x = 8,496,085.59/2,728.68
  6. Step 6: Final answer
    x = 3,113.62

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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.