Home / 2,556.09-3,828.77-1,237.95

Finding the Fourth Proportional to 2,556.09, 3,828.77 and 1,237.95

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Solution

The fourth proportional to 2,556.09, 3,828.77 and 1,237.95 is: 1,854.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.09 : 3,828.77 = 1,237.95 : x
  2. Step 2: Convert to fraction form
    2,556.09/3,828.77 = 1,237.95/x
  3. Step 3: Cross multiply
    2,556.09x = 3,828.77 × 1,237.95
  4. Step 4: Simplify right side
    2,556.09x = 4,739,819.63
  5. Step 5: Solve for x
    x = 4,739,819.63/2,556.09
  6. Step 6: Final answer
    x = 1,854.32

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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.