Home / 1,906.64-2,630.58-1,243.25

Finding the Fourth Proportional to 1,906.64, 2,630.58 and 1,243.25

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Solution

The fourth proportional to 1,906.64, 2,630.58 and 1,243.25 is: 1,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.64 : 2,630.58 = 1,243.25 : x
  2. Step 2: Convert to fraction form
    1,906.64/2,630.58 = 1,243.25/x
  3. Step 3: Cross multiply
    1,906.64x = 2,630.58 × 1,243.25
  4. Step 4: Simplify right side
    1,906.64x = 3,270,468.59
  5. Step 5: Solve for x
    x = 3,270,468.59/1,906.64
  6. Step 6: Final answer
    x = 1,715.30

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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.