Home / 2,331.14-3,496.70-687.85

Finding the Fourth Proportional to 2,331.14, 3,496.70 and 687.85

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Solution

The fourth proportional to 2,331.14, 3,496.70 and 687.85 is: 1,031.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.14 : 3,496.70 = 687.85 : x
  2. Step 2: Convert to fraction form
    2,331.14/3,496.70 = 687.85/x
  3. Step 3: Cross multiply
    2,331.14x = 3,496.70 × 687.85
  4. Step 4: Simplify right side
    2,331.14x = 2,405,198.07
  5. Step 5: Solve for x
    x = 2,405,198.07/2,331.14
  6. Step 6: Final answer
    x = 1,031.77

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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.