Home / 2,193.39-3,288.87-731.75

Finding the Fourth Proportional to 2,193.39, 3,288.87 and 731.75

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Solution

The fourth proportional to 2,193.39, 3,288.87 and 731.75 is: 1,097.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.39 : 3,288.87 = 731.75 : x
  2. Step 2: Convert to fraction form
    2,193.39/3,288.87 = 731.75/x
  3. Step 3: Cross multiply
    2,193.39x = 3,288.87 × 731.75
  4. Step 4: Simplify right side
    2,193.39x = 2,406,614.18
  5. Step 5: Solve for x
    x = 2,406,614.18/2,193.39
  6. Step 6: Final answer
    x = 1,097.21

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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.