Home / 4,151.57-6,229.85-1,686.20

Finding the Fourth Proportional to 4,151.57, 6,229.85 and 1,686.20

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Solution

The fourth proportional to 4,151.57, 6,229.85 and 1,686.20 is: 2,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151.57 : 6,229.85 = 1,686.20 : x
  2. Step 2: Convert to fraction form
    4,151.57/6,229.85 = 1,686.20/x
  3. Step 3: Cross multiply
    4,151.57x = 6,229.85 × 1,686.20
  4. Step 4: Simplify right side
    4,151.57x = 10,504,780.21
  5. Step 5: Solve for x
    x = 10,504,780.21/4,151.57
  6. Step 6: Final answer
    x = 2,530.31

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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.