Home / 3,074.20-4,611.30-2,806.90

Finding the Fourth Proportional to 3,074.20, 4,611.30 and 2,806.90

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Solution

The fourth proportional to 3,074.20, 4,611.30 and 2,806.90 is: 4,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.20 : 4,611.30 = 2,806.90 : x
  2. Step 2: Convert to fraction form
    3,074.20/4,611.30 = 2,806.90/x
  3. Step 3: Cross multiply
    3,074.20x = 4,611.30 × 2,806.90
  4. Step 4: Simplify right side
    3,074.20x = 12,943,457.97
  5. Step 5: Solve for x
    x = 12,943,457.97/3,074.20
  6. Step 6: Final answer
    x = 4,210.35

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Similar ratio
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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.