Home / 2,642.94-3,965.52-1,257.24

Finding the Fourth Proportional to 2,642.94, 3,965.52 and 1,257.24

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Solution

The fourth proportional to 2,642.94, 3,965.52 and 1,257.24 is: 1,886.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.94 : 3,965.52 = 1,257.24 : x
  2. Step 2: Convert to fraction form
    2,642.94/3,965.52 = 1,257.24/x
  3. Step 3: Cross multiply
    2,642.94x = 3,965.52 × 1,257.24
  4. Step 4: Simplify right side
    2,642.94x = 4,985,610.36
  5. Step 5: Solve for x
    x = 4,985,610.36/2,642.94
  6. Step 6: Final answer
    x = 1,886.39

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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.