Home / 3,813.22-5,714.70-1,621.36

Finding the Fourth Proportional to 3,813.22, 5,714.70 and 1,621.36

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Solution

The fourth proportional to 3,813.22, 5,714.70 and 1,621.36 is: 2,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.22 : 5,714.70 = 1,621.36 : x
  2. Step 2: Convert to fraction form
    3,813.22/5,714.70 = 1,621.36/x
  3. Step 3: Cross multiply
    3,813.22x = 5,714.70 × 1,621.36
  4. Step 4: Simplify right side
    3,813.22x = 9,265,585.99
  5. Step 5: Solve for x
    x = 9,265,585.99/3,813.22
  6. Step 6: Final answer
    x = 2,429.86

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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.