Home / 2,321.28-3,201.04-2,153.44

Finding the Fourth Proportional to 2,321.28, 3,201.04 and 2,153.44

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Solution

The fourth proportional to 2,321.28, 3,201.04 and 2,153.44 is: 2,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.28 : 3,201.04 = 2,153.44 : x
  2. Step 2: Convert to fraction form
    2,321.28/3,201.04 = 2,153.44/x
  3. Step 3: Cross multiply
    2,321.28x = 3,201.04 × 2,153.44
  4. Step 4: Simplify right side
    2,321.28x = 6,893,247.58
  5. Step 5: Solve for x
    x = 6,893,247.58/2,321.28
  6. Step 6: Final answer
    x = 2,969.59

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1.5x scale

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.