Home / 3,782.29-5,220.69-2,456.18

Finding the Fourth Proportional to 3,782.29, 5,220.69 and 2,456.18

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Solution

The fourth proportional to 3,782.29, 5,220.69 and 2,456.18 is: 3,390.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.29 : 5,220.69 = 2,456.18 : x
  2. Step 2: Convert to fraction form
    3,782.29/5,220.69 = 2,456.18/x
  3. Step 3: Cross multiply
    3,782.29x = 5,220.69 × 2,456.18
  4. Step 4: Simplify right side
    3,782.29x = 12,822,954.36
  5. Step 5: Solve for x
    x = 12,822,954.36/3,782.29
  6. Step 6: Final answer
    x = 3,390.27

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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.