Home / 2,809.25-3,876.73-1,550.35

Finding the Fourth Proportional to 2,809.25, 3,876.73 and 1,550.35

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Solution

The fourth proportional to 2,809.25, 3,876.73 and 1,550.35 is: 2,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.25 : 3,876.73 = 1,550.35 : x
  2. Step 2: Convert to fraction form
    2,809.25/3,876.73 = 1,550.35/x
  3. Step 3: Cross multiply
    2,809.25x = 3,876.73 × 1,550.35
  4. Step 4: Simplify right side
    2,809.25x = 6,010,288.36
  5. Step 5: Solve for x
    x = 6,010,288.36/2,809.25
  6. Step 6: Final answer
    x = 2,139.46

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1.5x scale

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.