Home / 2,201.28-3,037.77-1,317.30

Finding the Fourth Proportional to 2,201.28, 3,037.77 and 1,317.30

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Solution

The fourth proportional to 2,201.28, 3,037.77 and 1,317.30 is: 1,817.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.28 : 3,037.77 = 1,317.30 : x
  2. Step 2: Convert to fraction form
    2,201.28/3,037.77 = 1,317.30/x
  3. Step 3: Cross multiply
    2,201.28x = 3,037.77 × 1,317.30
  4. Step 4: Simplify right side
    2,201.28x = 4,001,654.42
  5. Step 5: Solve for x
    x = 4,001,654.42/2,201.28
  6. Step 6: Final answer
    x = 1,817.88

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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.