Home / 2,820.85-4,226.66-2,712.85

Finding the Fourth Proportional to 2,820.85, 4,226.66 and 2,712.85

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Solution

The fourth proportional to 2,820.85, 4,226.66 and 2,712.85 is: 4,064.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.85 : 4,226.66 = 2,712.85 : x
  2. Step 2: Convert to fraction form
    2,820.85/4,226.66 = 2,712.85/x
  3. Step 3: Cross multiply
    2,820.85x = 4,226.66 × 2,712.85
  4. Step 4: Simplify right side
    2,820.85x = 11,466,281.02
  5. Step 5: Solve for x
    x = 11,466,281.02/2,820.85
  6. Step 6: Final answer
    x = 4,064.83

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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.