Home / 3,138.39-4,333.04-2,428.98

Finding the Fourth Proportional to 3,138.39, 4,333.04 and 2,428.98

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Solution

The fourth proportional to 3,138.39, 4,333.04 and 2,428.98 is: 3,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.39 : 4,333.04 = 2,428.98 : x
  2. Step 2: Convert to fraction form
    3,138.39/4,333.04 = 2,428.98/x
  3. Step 3: Cross multiply
    3,138.39x = 4,333.04 × 2,428.98
  4. Step 4: Simplify right side
    3,138.39x = 10,524,855.35
  5. Step 5: Solve for x
    x = 10,524,855.35/3,138.39
  6. Step 6: Final answer
    x = 3,353.58

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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.