Home / 3,630.88-5,011.03-2,138.77

Finding the Fourth Proportional to 3,630.88, 5,011.03 and 2,138.77

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Solution

The fourth proportional to 3,630.88, 5,011.03 and 2,138.77 is: 2,951.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.88 : 5,011.03 = 2,138.77 : x
  2. Step 2: Convert to fraction form
    3,630.88/5,011.03 = 2,138.77/x
  3. Step 3: Cross multiply
    3,630.88x = 5,011.03 × 2,138.77
  4. Step 4: Simplify right side
    3,630.88x = 10,717,449.57
  5. Step 5: Solve for x
    x = 10,717,449.57/3,630.88
  6. Step 6: Final answer
    x = 2,951.75

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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.