Home / 3,218.77-4,828.20-910.27

Finding the Fourth Proportional to 3,218.77, 4,828.20 and 910.27

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Solution

The fourth proportional to 3,218.77, 4,828.20 and 910.27 is: 1,365.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.77 : 4,828.20 = 910.27 : x
  2. Step 2: Convert to fraction form
    3,218.77/4,828.20 = 910.27/x
  3. Step 3: Cross multiply
    3,218.77x = 4,828.20 × 910.27
  4. Step 4: Simplify right side
    3,218.77x = 4,394,965.61
  5. Step 5: Solve for x
    x = 4,394,965.61/3,218.77
  6. Step 6: Final answer
    x = 1,365.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.