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Finding the Fourth Proportional to 4,970.28, 6,859.98 and 3,789.24

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Solution

The fourth proportional to 4,970.28, 6,859.98 and 3,789.24 is: 5,229.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.28 : 6,859.98 = 3,789.24 : x
  2. Step 2: Convert to fraction form
    4,970.28/6,859.98 = 3,789.24/x
  3. Step 3: Cross multiply
    4,970.28x = 6,859.98 × 3,789.24
  4. Step 4: Simplify right side
    4,970.28x = 25,994,110.62
  5. Step 5: Solve for x
    x = 25,994,110.62/4,970.28
  6. Step 6: Final answer
    x = 5,229.91

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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.