Home / 2,157.13-3,235.08-696.09

Finding the Fourth Proportional to 2,157.13, 3,235.08 and 696.09

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Solution

The fourth proportional to 2,157.13, 3,235.08 and 696.09 is: 1,043.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.13 : 3,235.08 = 696.09 : x
  2. Step 2: Convert to fraction form
    2,157.13/3,235.08 = 696.09/x
  3. Step 3: Cross multiply
    2,157.13x = 3,235.08 × 696.09
  4. Step 4: Simplify right side
    2,157.13x = 2,251,906.84
  5. Step 5: Solve for x
    x = 2,251,906.84/2,157.13
  6. Step 6: Final answer
    x = 1,043.94

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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.