Home / 2,256.72-3,115.44-1,556.88

Finding the Fourth Proportional to 2,256.72, 3,115.44 and 1,556.88

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Solution

The fourth proportional to 2,256.72, 3,115.44 and 1,556.88 is: 2,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.72 : 3,115.44 = 1,556.88 : x
  2. Step 2: Convert to fraction form
    2,256.72/3,115.44 = 1,556.88/x
  3. Step 3: Cross multiply
    2,256.72x = 3,115.44 × 1,556.88
  4. Step 4: Simplify right side
    2,256.72x = 4,850,366.23
  5. Step 5: Solve for x
    x = 4,850,366.23/2,256.72
  6. Step 6: Final answer
    x = 2,149.30

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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.