Home / 2,177.88-3,005.48-1,246.56

Finding the Fourth Proportional to 2,177.88, 3,005.48 and 1,246.56

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Solution

The fourth proportional to 2,177.88, 3,005.48 and 1,246.56 is: 1,720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.88 : 3,005.48 = 1,246.56 : x
  2. Step 2: Convert to fraction form
    2,177.88/3,005.48 = 1,246.56/x
  3. Step 3: Cross multiply
    2,177.88x = 3,005.48 × 1,246.56
  4. Step 4: Simplify right side
    2,177.88x = 3,746,511.15
  5. Step 5: Solve for x
    x = 3,746,511.15/2,177.88
  6. Step 6: Final answer
    x = 1,720.26

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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.