Home / 3,186.40-4,766.10-2,859.70

Finding the Fourth Proportional to 3,186.40, 4,766.10 and 2,859.70

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Solution

The fourth proportional to 3,186.40, 4,766.10 and 2,859.70 is: 4,277.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.40 : 4,766.10 = 2,859.70 : x
  2. Step 2: Convert to fraction form
    3,186.40/4,766.10 = 2,859.70/x
  3. Step 3: Cross multiply
    3,186.40x = 4,766.10 × 2,859.70
  4. Step 4: Simplify right side
    3,186.40x = 13,629,616.17
  5. Step 5: Solve for x
    x = 13,629,616.17/3,186.40
  6. Step 6: Final answer
    x = 4,277.43

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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.