Home / 3,782.80-5,219.96-2,210.72

Finding the Fourth Proportional to 3,782.80, 5,219.96 and 2,210.72

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Solution

The fourth proportional to 3,782.80, 5,219.96 and 2,210.72 is: 3,050.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.80 : 5,219.96 = 2,210.72 : x
  2. Step 2: Convert to fraction form
    3,782.80/5,219.96 = 2,210.72/x
  3. Step 3: Cross multiply
    3,782.80x = 5,219.96 × 2,210.72
  4. Step 4: Simplify right side
    3,782.80x = 11,539,869.97
  5. Step 5: Solve for x
    x = 11,539,869.97/3,782.80
  6. Step 6: Final answer
    x = 3,050.62

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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.