Home / 2,809.12-3,876.34-1,630.27

Finding the Fourth Proportional to 2,809.12, 3,876.34 and 1,630.27

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Solution

The fourth proportional to 2,809.12, 3,876.34 and 1,630.27 is: 2,249.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.12 : 3,876.34 = 1,630.27 : x
  2. Step 2: Convert to fraction form
    2,809.12/3,876.34 = 1,630.27/x
  3. Step 3: Cross multiply
    2,809.12x = 3,876.34 × 1,630.27
  4. Step 4: Simplify right side
    2,809.12x = 6,319,480.81
  5. Step 5: Solve for x
    x = 6,319,480.81/2,809.12
  6. Step 6: Final answer
    x = 2,249.63

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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.