Home / 2,999.24-4,138.56-1,672.76

Finding the Fourth Proportional to 2,999.24, 4,138.56 and 1,672.76

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Solution

The fourth proportional to 2,999.24, 4,138.56 and 1,672.76 is: 2,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.24 : 4,138.56 = 1,672.76 : x
  2. Step 2: Convert to fraction form
    2,999.24/4,138.56 = 1,672.76/x
  3. Step 3: Cross multiply
    2,999.24x = 4,138.56 × 1,672.76
  4. Step 4: Simplify right side
    2,999.24x = 6,922,817.63
  5. Step 5: Solve for x
    x = 6,922,817.63/2,999.24
  6. Step 6: Final answer
    x = 2,308.19

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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.