Home / 2,253.64-3,109.70-1,321.96

Finding the Fourth Proportional to 2,253.64, 3,109.70 and 1,321.96

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Solution

The fourth proportional to 2,253.64, 3,109.70 and 1,321.96 is: 1,824.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.64 : 3,109.70 = 1,321.96 : x
  2. Step 2: Convert to fraction form
    2,253.64/3,109.70 = 1,321.96/x
  3. Step 3: Cross multiply
    2,253.64x = 3,109.70 × 1,321.96
  4. Step 4: Simplify right side
    2,253.64x = 4,110,899.01
  5. Step 5: Solve for x
    x = 4,110,899.01/2,253.64
  6. Step 6: Final answer
    x = 1,824.12

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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.