Home / 2,561.56-3,823.63-2,198.68

Finding the Fourth Proportional to 2,561.56, 3,823.63 and 2,198.68

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Solution

The fourth proportional to 2,561.56, 3,823.63 and 2,198.68 is: 3,281.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,561.56 : 3,823.63 = 2,198.68 : x
  2. Step 2: Convert to fraction form
    2,561.56/3,823.63 = 2,198.68/x
  3. Step 3: Cross multiply
    2,561.56x = 3,823.63 × 2,198.68
  4. Step 4: Simplify right side
    2,561.56x = 8,406,938.81
  5. Step 5: Solve for x
    x = 8,406,938.81/2,561.56
  6. Step 6: Final answer
    x = 3,281.96

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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.