Home / 2,445.78-3,375.44-1,383.96

Finding the Fourth Proportional to 2,445.78, 3,375.44 and 1,383.96

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Solution

The fourth proportional to 2,445.78, 3,375.44 and 1,383.96 is: 1,910.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.78 : 3,375.44 = 1,383.96 : x
  2. Step 2: Convert to fraction form
    2,445.78/3,375.44 = 1,383.96/x
  3. Step 3: Cross multiply
    2,445.78x = 3,375.44 × 1,383.96
  4. Step 4: Simplify right side
    2,445.78x = 4,671,473.94
  5. Step 5: Solve for x
    x = 4,671,473.94/2,445.78
  6. Step 6: Final answer
    x = 1,910.01

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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.