Home / 4,921.26-6,789.20-3,240.51

Finding the Fourth Proportional to 4,921.26, 6,789.20 and 3,240.51

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Solution

The fourth proportional to 4,921.26, 6,789.20 and 3,240.51 is: 4,470.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.26 : 6,789.20 = 3,240.51 : x
  2. Step 2: Convert to fraction form
    4,921.26/6,789.20 = 3,240.51/x
  3. Step 3: Cross multiply
    4,921.26x = 6,789.20 × 3,240.51
  4. Step 4: Simplify right side
    4,921.26x = 22,000,454.29
  5. Step 5: Solve for x
    x = 22,000,454.29/4,921.26
  6. Step 6: Final answer
    x = 4,470.49

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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.