Home / 4,921.18-6,789.30-3,243.49

Finding the Fourth Proportional to 4,921.18, 6,789.30 and 3,243.49

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Solution

The fourth proportional to 4,921.18, 6,789.30 and 3,243.49 is: 4,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.18 : 6,789.30 = 3,243.49 : x
  2. Step 2: Convert to fraction form
    4,921.18/6,789.30 = 3,243.49/x
  3. Step 3: Cross multiply
    4,921.18x = 6,789.30 × 3,243.49
  4. Step 4: Simplify right side
    4,921.18x = 22,021,026.66
  5. Step 5: Solve for x
    x = 22,021,026.66/4,921.18
  6. Step 6: Final answer
    x = 4,474.75

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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.