Home / 2,642.08-3,645.84-1,942.24

Finding the Fourth Proportional to 2,642.08, 3,645.84 and 1,942.24

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Solution

The fourth proportional to 2,642.08, 3,645.84 and 1,942.24 is: 2,680.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.08 : 3,645.84 = 1,942.24 : x
  2. Step 2: Convert to fraction form
    2,642.08/3,645.84 = 1,942.24/x
  3. Step 3: Cross multiply
    2,642.08x = 3,645.84 × 1,942.24
  4. Step 4: Simplify right side
    2,642.08x = 7,081,096.28
  5. Step 5: Solve for x
    x = 7,081,096.28/2,642.08
  6. Step 6: Final answer
    x = 2,680.12

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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.