Home / 2,229.57-3,078.14-1,445.09

Finding the Fourth Proportional to 2,229.57, 3,078.14 and 1,445.09

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Solution

The fourth proportional to 2,229.57, 3,078.14 and 1,445.09 is: 1,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.57 : 3,078.14 = 1,445.09 : x
  2. Step 2: Convert to fraction form
    2,229.57/3,078.14 = 1,445.09/x
  3. Step 3: Cross multiply
    2,229.57x = 3,078.14 × 1,445.09
  4. Step 4: Simplify right side
    2,229.57x = 4,448,166.72
  5. Step 5: Solve for x
    x = 4,448,166.72/2,229.57
  6. Step 6: Final answer
    x = 1,995.08

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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.