Home / 3,166.24-4,367.28-1,986.88

Finding the Fourth Proportional to 3,166.24, 4,367.28 and 1,986.88

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Solution

The fourth proportional to 3,166.24, 4,367.28 and 1,986.88 is: 2,740.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166.24 : 4,367.28 = 1,986.88 : x
  2. Step 2: Convert to fraction form
    3,166.24/4,367.28 = 1,986.88/x
  3. Step 3: Cross multiply
    3,166.24x = 4,367.28 × 1,986.88
  4. Step 4: Simplify right side
    3,166.24x = 8,677,261.29
  5. Step 5: Solve for x
    x = 8,677,261.29/3,166.24
  6. Step 6: Final answer
    x = 2,740.56

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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.