Home / 3,642.88-5,027.84-2,315.52

Finding the Fourth Proportional to 3,642.88, 5,027.84 and 2,315.52

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Solution

The fourth proportional to 3,642.88, 5,027.84 and 2,315.52 is: 3,195.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.88 : 5,027.84 = 2,315.52 : x
  2. Step 2: Convert to fraction form
    3,642.88/5,027.84 = 2,315.52/x
  3. Step 3: Cross multiply
    3,642.88x = 5,027.84 × 2,315.52
  4. Step 4: Simplify right side
    3,642.88x = 11,642,064.08
  5. Step 5: Solve for x
    x = 11,642,064.08/3,642.88
  6. Step 6: Final answer
    x = 3,195.84

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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.