Home / 4,288.20-6,431.22-1,691.16

Finding the Fourth Proportional to 4,288.20, 6,431.22 and 1,691.16

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Solution

The fourth proportional to 4,288.20, 6,431.22 and 1,691.16 is: 2,536.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.20 : 6,431.22 = 1,691.16 : x
  2. Step 2: Convert to fraction form
    4,288.20/6,431.22 = 1,691.16/x
  3. Step 3: Cross multiply
    4,288.20x = 6,431.22 × 1,691.16
  4. Step 4: Simplify right side
    4,288.20x = 10,876,222.02
  5. Step 5: Solve for x
    x = 10,876,222.02/4,288.20
  6. Step 6: Final answer
    x = 2,536.31

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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.