Home / 5,521.69-7,620.63-3,163.84

Finding the Fourth Proportional to 5,521.69, 7,620.63 and 3,163.84

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Solution

The fourth proportional to 5,521.69, 7,620.63 and 3,163.84 is: 4,366.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.69 : 7,620.63 = 3,163.84 : x
  2. Step 2: Convert to fraction form
    5,521.69/7,620.63 = 3,163.84/x
  3. Step 3: Cross multiply
    5,521.69x = 7,620.63 × 3,163.84
  4. Step 4: Simplify right side
    5,521.69x = 24,110,454.02
  5. Step 5: Solve for x
    x = 24,110,454.02/5,521.69
  6. Step 6: Final answer
    x = 4,366.50

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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.