Home / 2,809.36-3,876.87-1,550.54

Finding the Fourth Proportional to 2,809.36, 3,876.87 and 1,550.54

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Solution

The fourth proportional to 2,809.36, 3,876.87 and 1,550.54 is: 2,139.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.36 : 3,876.87 = 1,550.54 : x
  2. Step 2: Convert to fraction form
    2,809.36/3,876.87 = 1,550.54/x
  3. Step 3: Cross multiply
    2,809.36x = 3,876.87 × 1,550.54
  4. Step 4: Simplify right side
    2,809.36x = 6,011,242.01
  5. Step 5: Solve for x
    x = 6,011,242.01/2,809.36
  6. Step 6: Final answer
    x = 2,139.72

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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.