Home / 5,859.20-8,085.80-3,206.78

Finding the Fourth Proportional to 5,859.20, 8,085.80 and 3,206.78

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Solution

The fourth proportional to 5,859.20, 8,085.80 and 3,206.78 is: 4,425.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,859.20 : 8,085.80 = 3,206.78 : x
  2. Step 2: Convert to fraction form
    5,859.20/8,085.80 = 3,206.78/x
  3. Step 3: Cross multiply
    5,859.20x = 8,085.80 × 3,206.78
  4. Step 4: Simplify right side
    5,859.20x = 25,929,381.72
  5. Step 5: Solve for x
    x = 25,929,381.72/5,859.20
  6. Step 6: Final answer
    x = 4,425.41

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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.