Home / 3,226.78-4,842.60-2,130.76

Finding the Fourth Proportional to 3,226.78, 4,842.60 and 2,130.76

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Solution

The fourth proportional to 3,226.78, 4,842.60 and 2,130.76 is: 3,197.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.78 : 4,842.60 = 2,130.76 : x
  2. Step 2: Convert to fraction form
    3,226.78/4,842.60 = 2,130.76/x
  3. Step 3: Cross multiply
    3,226.78x = 4,842.60 × 2,130.76
  4. Step 4: Simplify right side
    3,226.78x = 10,318,418.38
  5. Step 5: Solve for x
    x = 10,318,418.38/3,226.78
  6. Step 6: Final answer
    x = 3,197.74

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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.