Home / 3,425.85-5,138.81-1,233.05

Finding the Fourth Proportional to 3,425.85, 5,138.81 and 1,233.05

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Solution

The fourth proportional to 3,425.85, 5,138.81 and 1,233.05 is: 1,849.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.85 : 5,138.81 = 1,233.05 : x
  2. Step 2: Convert to fraction form
    3,425.85/5,138.81 = 1,233.05/x
  3. Step 3: Cross multiply
    3,425.85x = 5,138.81 × 1,233.05
  4. Step 4: Simplify right side
    3,425.85x = 6,336,377.81
  5. Step 5: Solve for x
    x = 6,336,377.81/3,425.85
  6. Step 6: Final answer
    x = 1,849.58

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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.