Home / 3,140.21-4,709.49-1,493.48

Finding the Fourth Proportional to 3,140.21, 4,709.49 and 1,493.48

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Solution

The fourth proportional to 3,140.21, 4,709.49 and 1,493.48 is: 2,239.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.21 : 4,709.49 = 1,493.48 : x
  2. Step 2: Convert to fraction form
    3,140.21/4,709.49 = 1,493.48/x
  3. Step 3: Cross multiply
    3,140.21x = 4,709.49 × 1,493.48
  4. Step 4: Simplify right side
    3,140.21x = 7,033,505.58
  5. Step 5: Solve for x
    x = 7,033,505.58/3,140.21
  6. Step 6: Final answer
    x = 2,239.82

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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.