Home / 5,521.61-7,620.51-3,163.70

Finding the Fourth Proportional to 5,521.61, 7,620.51 and 3,163.70

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Solution

The fourth proportional to 5,521.61, 7,620.51 and 3,163.70 is: 4,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.61 : 7,620.51 = 3,163.70 : x
  2. Step 2: Convert to fraction form
    5,521.61/7,620.51 = 3,163.70/x
  3. Step 3: Cross multiply
    5,521.61x = 7,620.51 × 3,163.70
  4. Step 4: Simplify right side
    5,521.61x = 24,108,969.38
  5. Step 5: Solve for x
    x = 24,108,969.38/5,521.61
  6. Step 6: Final answer
    x = 4,366.30

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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.