Home / 3,148.40-4,715.30-2,796.68

Finding the Fourth Proportional to 3,148.40, 4,715.30 and 2,796.68

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Solution

The fourth proportional to 3,148.40, 4,715.30 and 2,796.68 is: 4,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.40 : 4,715.30 = 2,796.68 : x
  2. Step 2: Convert to fraction form
    3,148.40/4,715.30 = 2,796.68/x
  3. Step 3: Cross multiply
    3,148.40x = 4,715.30 × 2,796.68
  4. Step 4: Simplify right side
    3,148.40x = 13,187,185.20
  5. Step 5: Solve for x
    x = 13,187,185.20/3,148.40
  6. Step 6: Final answer
    x = 4,188.54

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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.