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Finding the Fourth Proportional to 2,999.03, 4,138.70 and 1,672.70

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Solution

The fourth proportional to 2,999.03, 4,138.70 and 1,672.70 is: 2,308.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.03 : 4,138.70 = 1,672.70 : x
  2. Step 2: Convert to fraction form
    2,999.03/4,138.70 = 1,672.70/x
  3. Step 3: Cross multiply
    2,999.03x = 4,138.70 × 1,672.70
  4. Step 4: Simplify right side
    2,999.03x = 6,922,774.43
  5. Step 5: Solve for x
    x = 6,922,774.43/2,999.03
  6. Step 6: Final answer
    x = 2,308.34

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1.5x scale

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.