Home / 2,180.42-3,005.80-1,655.54

Finding the Fourth Proportional to 2,180.42, 3,005.80 and 1,655.54

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Solution

The fourth proportional to 2,180.42, 3,005.80 and 1,655.54 is: 2,282.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.42 : 3,005.80 = 1,655.54 : x
  2. Step 2: Convert to fraction form
    2,180.42/3,005.80 = 1,655.54/x
  3. Step 3: Cross multiply
    2,180.42x = 3,005.80 × 1,655.54
  4. Step 4: Simplify right side
    2,180.42x = 4,976,202.96
  5. Step 5: Solve for x
    x = 4,976,202.96/2,180.42
  6. Step 6: Final answer
    x = 2,282.23

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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.