Home / 3,630.32-5,443.76-2,129.79

Finding the Fourth Proportional to 3,630.32, 5,443.76 and 2,129.79

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Solution

The fourth proportional to 3,630.32, 5,443.76 and 2,129.79 is: 3,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.32 : 5,443.76 = 2,129.79 : x
  2. Step 2: Convert to fraction form
    3,630.32/5,443.76 = 2,129.79/x
  3. Step 3: Cross multiply
    3,630.32x = 5,443.76 × 2,129.79
  4. Step 4: Simplify right side
    3,630.32x = 11,594,054.96
  5. Step 5: Solve for x
    x = 11,594,054.96/3,630.32
  6. Step 6: Final answer
    x = 3,193.68

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1.5x scale

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.