Home / 2,922.85-4,380.13-1,275.94

Finding the Fourth Proportional to 2,922.85, 4,380.13 and 1,275.94

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Solution

The fourth proportional to 2,922.85, 4,380.13 and 1,275.94 is: 1,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.85 : 4,380.13 = 1,275.94 : x
  2. Step 2: Convert to fraction form
    2,922.85/4,380.13 = 1,275.94/x
  3. Step 3: Cross multiply
    2,922.85x = 4,380.13 × 1,275.94
  4. Step 4: Simplify right side
    2,922.85x = 5,588,783.07
  5. Step 5: Solve for x
    x = 5,588,783.07/2,922.85
  6. Step 6: Final answer
    x = 1,912.10

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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.