Home / 3,621.89-4,998.40-2,205.35

Finding the Fourth Proportional to 3,621.89, 4,998.40 and 2,205.35

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Solution

The fourth proportional to 3,621.89, 4,998.40 and 2,205.35 is: 3,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.89 : 4,998.40 = 2,205.35 : x
  2. Step 2: Convert to fraction form
    3,621.89/4,998.40 = 2,205.35/x
  3. Step 3: Cross multiply
    3,621.89x = 4,998.40 × 2,205.35
  4. Step 4: Simplify right side
    3,621.89x = 11,023,221.44
  5. Step 5: Solve for x
    x = 11,023,221.44/3,621.89
  6. Step 6: Final answer
    x = 3,043.50

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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.