Home / 2,277.92-3,420.84-2,161.10

Finding the Fourth Proportional to 2,277.92, 3,420.84 and 2,161.10

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Solution

The fourth proportional to 2,277.92, 3,420.84 and 2,161.10 is: 3,245.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.92 : 3,420.84 = 2,161.10 : x
  2. Step 2: Convert to fraction form
    2,277.92/3,420.84 = 2,161.10/x
  3. Step 3: Cross multiply
    2,277.92x = 3,420.84 × 2,161.10
  4. Step 4: Simplify right side
    2,277.92x = 7,392,777.32
  5. Step 5: Solve for x
    x = 7,392,777.32/2,277.92
  6. Step 6: Final answer
    x = 3,245.41

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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.