Home / 2,691.35-3,714.26-1,557.22

Finding the Fourth Proportional to 2,691.35, 3,714.26 and 1,557.22

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Solution

The fourth proportional to 2,691.35, 3,714.26 and 1,557.22 is: 2,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.35 : 3,714.26 = 1,557.22 : x
  2. Step 2: Convert to fraction form
    2,691.35/3,714.26 = 1,557.22/x
  3. Step 3: Cross multiply
    2,691.35x = 3,714.26 × 1,557.22
  4. Step 4: Simplify right side
    2,691.35x = 5,783,923.85
  5. Step 5: Solve for x
    x = 5,783,923.85/2,691.35
  6. Step 6: Final answer
    x = 2,149.08

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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.