Home / 2,942.26-4,056.68-2,380.66

Finding the Fourth Proportional to 2,942.26, 4,056.68 and 2,380.66

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Solution

The fourth proportional to 2,942.26, 4,056.68 and 2,380.66 is: 3,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,942.26 : 4,056.68 = 2,380.66 : x
  2. Step 2: Convert to fraction form
    2,942.26/4,056.68 = 2,380.66/x
  3. Step 3: Cross multiply
    2,942.26x = 4,056.68 × 2,380.66
  4. Step 4: Simplify right side
    2,942.26x = 9,657,575.81
  5. Step 5: Solve for x
    x = 9,657,575.81/2,942.26
  6. Step 6: Final answer
    x = 3,282.37

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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.