Home / 2,201.21-3,037.59-1,316.55

Finding the Fourth Proportional to 2,201.21, 3,037.59 and 1,316.55

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Solution

The fourth proportional to 2,201.21, 3,037.59 and 1,316.55 is: 1,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.21 : 3,037.59 = 1,316.55 : x
  2. Step 2: Convert to fraction form
    2,201.21/3,037.59 = 1,316.55/x
  3. Step 3: Cross multiply
    2,201.21x = 3,037.59 × 1,316.55
  4. Step 4: Simplify right side
    2,201.21x = 3,999,139.11
  5. Step 5: Solve for x
    x = 3,999,139.11/2,201.21
  6. Step 6: Final answer
    x = 1,816.80

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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.