Home / 1,548.03-2,135.78-949.91

Finding the Fourth Proportional to 1,548.03, 2,135.78 and 949.91

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Solution

The fourth proportional to 1,548.03, 2,135.78 and 949.91 is: 1,310.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.03 : 2,135.78 = 949.91 : x
  2. Step 2: Convert to fraction form
    1,548.03/2,135.78 = 949.91/x
  3. Step 3: Cross multiply
    1,548.03x = 2,135.78 × 949.91
  4. Step 4: Simplify right side
    1,548.03x = 2,028,783.35
  5. Step 5: Solve for x
    x = 2,028,783.35/1,548.03
  6. Step 6: Final answer
    x = 1,310.56

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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.