Home / 4,120.82-5,687.75-2,353.45

Finding the Fourth Proportional to 4,120.82, 5,687.75 and 2,353.45

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Solution

The fourth proportional to 4,120.82, 5,687.75 and 2,353.45 is: 3,248.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.82 : 5,687.75 = 2,353.45 : x
  2. Step 2: Convert to fraction form
    4,120.82/5,687.75 = 2,353.45/x
  3. Step 3: Cross multiply
    4,120.82x = 5,687.75 × 2,353.45
  4. Step 4: Simplify right side
    4,120.82x = 13,385,843.82
  5. Step 5: Solve for x
    x = 13,385,843.82/4,120.82
  6. Step 6: Final answer
    x = 3,248.34

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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.