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Finding the Fourth Proportional to 2,999.43, 4,139.24 and 1,672.92

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Solution

The fourth proportional to 2,999.43, 4,139.24 and 1,672.92 is: 2,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.43 : 4,139.24 = 1,672.92 : x
  2. Step 2: Convert to fraction form
    2,999.43/4,139.24 = 1,672.92/x
  3. Step 3: Cross multiply
    2,999.43x = 4,139.24 × 1,672.92
  4. Step 4: Simplify right side
    2,999.43x = 6,924,609.02
  5. Step 5: Solve for x
    x = 6,924,609.02/2,999.43
  6. Step 6: Final answer
    x = 2,308.64

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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.