Home / 2,201.92-3,037.64-1,317.20

Finding the Fourth Proportional to 2,201.92, 3,037.64 and 1,317.20

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Solution

The fourth proportional to 2,201.92, 3,037.64 and 1,317.20 is: 1,817.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.92 : 3,037.64 = 1,317.20 : x
  2. Step 2: Convert to fraction form
    2,201.92/3,037.64 = 1,317.20/x
  3. Step 3: Cross multiply
    2,201.92x = 3,037.64 × 1,317.20
  4. Step 4: Simplify right side
    2,201.92x = 4,001,157.63
  5. Step 5: Solve for x
    x = 4,001,157.63/2,201.92
  6. Step 6: Final answer
    x = 1,817.12

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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.