Home / 3,138.54-4,705.50-1,493.16

Finding the Fourth Proportional to 3,138.54, 4,705.50 and 1,493.16

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Solution

The fourth proportional to 3,138.54, 4,705.50 and 1,493.16 is: 2,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.54 : 4,705.50 = 1,493.16 : x
  2. Step 2: Convert to fraction form
    3,138.54/4,705.50 = 1,493.16/x
  3. Step 3: Cross multiply
    3,138.54x = 4,705.50 × 1,493.16
  4. Step 4: Simplify right side
    3,138.54x = 7,026,064.38
  5. Step 5: Solve for x
    x = 7,026,064.38/3,138.54
  6. Step 6: Final answer
    x = 2,238.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.