Home / 2,351.62-3,245.37-1,420.42

Finding the Fourth Proportional to 2,351.62, 3,245.37 and 1,420.42

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Solution

The fourth proportional to 2,351.62, 3,245.37 and 1,420.42 is: 1,960.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.62 : 3,245.37 = 1,420.42 : x
  2. Step 2: Convert to fraction form
    2,351.62/3,245.37 = 1,420.42/x
  3. Step 3: Cross multiply
    2,351.62x = 3,245.37 × 1,420.42
  4. Step 4: Simplify right side
    2,351.62x = 4,609,788.46
  5. Step 5: Solve for x
    x = 4,609,788.46/2,351.62
  6. Step 6: Final answer
    x = 1,960.26

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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.