Home / 2,821.02-4,233.95-1,361.40

Finding the Fourth Proportional to 2,821.02, 4,233.95 and 1,361.40

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Solution

The fourth proportional to 2,821.02, 4,233.95 and 1,361.40 is: 2,043.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.02 : 4,233.95 = 1,361.40 : x
  2. Step 2: Convert to fraction form
    2,821.02/4,233.95 = 1,361.40/x
  3. Step 3: Cross multiply
    2,821.02x = 4,233.95 × 1,361.40
  4. Step 4: Simplify right side
    2,821.02x = 5,764,078.36
  5. Step 5: Solve for x
    x = 5,764,078.36/2,821.02
  6. Step 6: Final answer
    x = 2,043.26

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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.