Home / 5,821.30-8,726.78-2,122.84

Finding the Fourth Proportional to 5,821.30, 8,726.78 and 2,122.84

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Solution

The fourth proportional to 5,821.30, 8,726.78 and 2,122.84 is: 3,182.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,821.30 : 8,726.78 = 2,122.84 : x
  2. Step 2: Convert to fraction form
    5,821.30/8,726.78 = 2,122.84/x
  3. Step 3: Cross multiply
    5,821.30x = 8,726.78 × 2,122.84
  4. Step 4: Simplify right side
    5,821.30x = 18,525,557.66
  5. Step 5: Solve for x
    x = 18,525,557.66/5,821.30
  6. Step 6: Final answer
    x = 3,182.37

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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.