Home / 5,150.82-7,726.21-2,188.81

Finding the Fourth Proportional to 5,150.82, 7,726.21 and 2,188.81

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Solution

The fourth proportional to 5,150.82, 7,726.21 and 2,188.81 is: 3,283.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150.82 : 7,726.21 = 2,188.81 : x
  2. Step 2: Convert to fraction form
    5,150.82/7,726.21 = 2,188.81/x
  3. Step 3: Cross multiply
    5,150.82x = 7,726.21 × 2,188.81
  4. Step 4: Simplify right side
    5,150.82x = 16,911,222.21
  5. Step 5: Solve for x
    x = 16,911,222.21/5,150.82
  6. Step 6: Final answer
    x = 3,283.21

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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.