Home / 5,529.76-7,630.86-3,172.12

Finding the Fourth Proportional to 5,529.76, 7,630.86 and 3,172.12

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Solution

The fourth proportional to 5,529.76, 7,630.86 and 3,172.12 is: 4,377.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,529.76 : 7,630.86 = 3,172.12 : x
  2. Step 2: Convert to fraction form
    5,529.76/7,630.86 = 3,172.12/x
  3. Step 3: Cross multiply
    5,529.76x = 7,630.86 × 3,172.12
  4. Step 4: Simplify right side
    5,529.76x = 24,206,003.62
  5. Step 5: Solve for x
    x = 24,206,003.62/5,529.76
  6. Step 6: Final answer
    x = 4,377.41

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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.