Home / 2,960.53-4,080.60-2,119.90

Finding the Fourth Proportional to 2,960.53, 4,080.60 and 2,119.90

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Solution

The fourth proportional to 2,960.53, 4,080.60 and 2,119.90 is: 2,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.53 : 4,080.60 = 2,119.90 : x
  2. Step 2: Convert to fraction form
    2,960.53/4,080.60 = 2,119.90/x
  3. Step 3: Cross multiply
    2,960.53x = 4,080.60 × 2,119.90
  4. Step 4: Simplify right side
    2,960.53x = 8,650,463.94
  5. Step 5: Solve for x
    x = 8,650,463.94/2,960.53
  6. Step 6: Final answer
    x = 2,921.93

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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.