Home / 2,939.45-4,056.99-2,230.04

Finding the Fourth Proportional to 2,939.45, 4,056.99 and 2,230.04

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Solution

The fourth proportional to 2,939.45, 4,056.99 and 2,230.04 is: 3,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.45 : 4,056.99 = 2,230.04 : x
  2. Step 2: Convert to fraction form
    2,939.45/4,056.99 = 2,230.04/x
  3. Step 3: Cross multiply
    2,939.45x = 4,056.99 × 2,230.04
  4. Step 4: Simplify right side
    2,939.45x = 9,047,228.94
  5. Step 5: Solve for x
    x = 9,047,228.94/2,939.45
  6. Step 6: Final answer
    x = 3,077.87

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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.