Home / 3,818.20-5,268.75-2,225.02

Finding the Fourth Proportional to 3,818.20, 5,268.75 and 2,225.02

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Solution

The fourth proportional to 3,818.20, 5,268.75 and 2,225.02 is: 3,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.20 : 5,268.75 = 2,225.02 : x
  2. Step 2: Convert to fraction form
    3,818.20/5,268.75 = 2,225.02/x
  3. Step 3: Cross multiply
    3,818.20x = 5,268.75 × 2,225.02
  4. Step 4: Simplify right side
    3,818.20x = 11,723,074.13
  5. Step 5: Solve for x
    x = 11,723,074.13/3,818.20
  6. Step 6: Final answer
    x = 3,070.31

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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.