Home / 3,786.18-5,679.87-1,706.91

Finding the Fourth Proportional to 3,786.18, 5,679.87 and 1,706.91

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Solution

The fourth proportional to 3,786.18, 5,679.87 and 1,706.91 is: 2,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.18 : 5,679.87 = 1,706.91 : x
  2. Step 2: Convert to fraction form
    3,786.18/5,679.87 = 1,706.91/x
  3. Step 3: Cross multiply
    3,786.18x = 5,679.87 × 1,706.91
  4. Step 4: Simplify right side
    3,786.18x = 9,695,026.90
  5. Step 5: Solve for x
    x = 9,695,026.90/3,786.18
  6. Step 6: Final answer
    x = 2,560.64

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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.