Home / 2,999.15-4,138.85-1,672.94

Finding the Fourth Proportional to 2,999.15, 4,138.85 and 1,672.94

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Solution

The fourth proportional to 2,999.15, 4,138.85 and 1,672.94 is: 2,308.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.15 : 4,138.85 = 1,672.94 : x
  2. Step 2: Convert to fraction form
    2,999.15/4,138.85 = 1,672.94/x
  3. Step 3: Cross multiply
    2,999.15x = 4,138.85 × 1,672.94
  4. Step 4: Simplify right side
    2,999.15x = 6,924,018.66
  5. Step 5: Solve for x
    x = 6,924,018.66/2,999.15
  6. Step 6: Final answer
    x = 2,308.66

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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.