Home / 3,211.10-4,784.90-2,884.05

Finding the Fourth Proportional to 3,211.10, 4,784.90 and 2,884.05

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Solution

The fourth proportional to 3,211.10, 4,784.90 and 2,884.05 is: 4,297.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.10 : 4,784.90 = 2,884.05 : x
  2. Step 2: Convert to fraction form
    3,211.10/4,784.90 = 2,884.05/x
  3. Step 3: Cross multiply
    3,211.10x = 4,784.90 × 2,884.05
  4. Step 4: Simplify right side
    3,211.10x = 13,799,876.42
  5. Step 5: Solve for x
    x = 13,799,876.42/3,211.10
  6. Step 6: Final answer
    x = 4,297.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.