Home / 2,755.08-3,801.60-1,575.90

Finding the Fourth Proportional to 2,755.08, 3,801.60 and 1,575.90

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Solution

The fourth proportional to 2,755.08, 3,801.60 and 1,575.90 is: 2,174.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.08 : 3,801.60 = 1,575.90 : x
  2. Step 2: Convert to fraction form
    2,755.08/3,801.60 = 1,575.90/x
  3. Step 3: Cross multiply
    2,755.08x = 3,801.60 × 1,575.90
  4. Step 4: Simplify right side
    2,755.08x = 5,990,941.44
  5. Step 5: Solve for x
    x = 5,990,941.44/2,755.08
  6. Step 6: Final answer
    x = 2,174.51

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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.