Home / 4,080.80-5,631.50-2,217.80

Finding the Fourth Proportional to 4,080.80, 5,631.50 and 2,217.80

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Solution

The fourth proportional to 4,080.80, 5,631.50 and 2,217.80 is: 3,060.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080.80 : 5,631.50 = 2,217.80 : x
  2. Step 2: Convert to fraction form
    4,080.80/5,631.50 = 2,217.80/x
  3. Step 3: Cross multiply
    4,080.80x = 5,631.50 × 2,217.80
  4. Step 4: Simplify right side
    4,080.80x = 12,489,522.41
  5. Step 5: Solve for x
    x = 12,489,522.41/4,080.80
  6. Step 6: Final answer
    x = 3,060.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.