Home / 3,200.40-4,800.60-1,351.22

Finding the Fourth Proportional to 3,200.40, 4,800.60 and 1,351.22

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Solution

The fourth proportional to 3,200.40, 4,800.60 and 1,351.22 is: 2,026.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.40 : 4,800.60 = 1,351.22 : x
  2. Step 2: Convert to fraction form
    3,200.40/4,800.60 = 1,351.22/x
  3. Step 3: Cross multiply
    3,200.40x = 4,800.60 × 1,351.22
  4. Step 4: Simplify right side
    3,200.40x = 6,486,666.73
  5. Step 5: Solve for x
    x = 6,486,666.73/3,200.40
  6. Step 6: Final answer
    x = 2,026.83

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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.