Home / 3,428.12-4,732.12-2,103.62

Finding the Fourth Proportional to 3,428.12, 4,732.12 and 2,103.62

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Solution

The fourth proportional to 3,428.12, 4,732.12 and 2,103.62 is: 2,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.12 : 4,732.12 = 2,103.62 : x
  2. Step 2: Convert to fraction form
    3,428.12/4,732.12 = 2,103.62/x
  3. Step 3: Cross multiply
    3,428.12x = 4,732.12 × 2,103.62
  4. Step 4: Simplify right side
    3,428.12x = 9,954,587.86
  5. Step 5: Solve for x
    x = 9,954,587.86/3,428.12
  6. Step 6: Final answer
    x = 2,903.80

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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.