Home / 2,921.99-4,381.02-1,361.12

Finding the Fourth Proportional to 2,921.99, 4,381.02 and 1,361.12

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Solution

The fourth proportional to 2,921.99, 4,381.02 and 1,361.12 is: 2,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.99 : 4,381.02 = 1,361.12 : x
  2. Step 2: Convert to fraction form
    2,921.99/4,381.02 = 1,361.12/x
  3. Step 3: Cross multiply
    2,921.99x = 4,381.02 × 1,361.12
  4. Step 4: Simplify right side
    2,921.99x = 5,963,072.04
  5. Step 5: Solve for x
    x = 5,963,072.04/2,921.99
  6. Step 6: Final answer
    x = 2,040.76

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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.