Home / 2,922.36-4,380.06-1,687.16

Finding the Fourth Proportional to 2,922.36, 4,380.06 and 1,687.16

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Solution

The fourth proportional to 2,922.36, 4,380.06 and 1,687.16 is: 2,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.36 : 4,380.06 = 1,687.16 : x
  2. Step 2: Convert to fraction form
    2,922.36/4,380.06 = 1,687.16/x
  3. Step 3: Cross multiply
    2,922.36x = 4,380.06 × 1,687.16
  4. Step 4: Simplify right side
    2,922.36x = 7,389,869.82
  5. Step 5: Solve for x
    x = 7,389,869.82/2,922.36
  6. Step 6: Final answer
    x = 2,528.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.