Home / 1,369.21-1,884.86-1,037.11

Finding the Fourth Proportional to 1,369.21, 1,884.86 and 1,037.11

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Solution

The fourth proportional to 1,369.21, 1,884.86 and 1,037.11 is: 1,427.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369.21 : 1,884.86 = 1,037.11 : x
  2. Step 2: Convert to fraction form
    1,369.21/1,884.86 = 1,037.11/x
  3. Step 3: Cross multiply
    1,369.21x = 1,884.86 × 1,037.11
  4. Step 4: Simplify right side
    1,369.21x = 1,954,801.97
  5. Step 5: Solve for x
    x = 1,954,801.97/1,369.21
  6. Step 6: Final answer
    x = 1,427.69

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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.