Home / 2,157.99-3,234.67-1,116.94

Finding the Fourth Proportional to 2,157.99, 3,234.67 and 1,116.94

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Solution

The fourth proportional to 2,157.99, 3,234.67 and 1,116.94 is: 1,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.99 : 3,234.67 = 1,116.94 : x
  2. Step 2: Convert to fraction form
    2,157.99/3,234.67 = 1,116.94/x
  3. Step 3: Cross multiply
    2,157.99x = 3,234.67 × 1,116.94
  4. Step 4: Simplify right side
    2,157.99x = 3,612,932.31
  5. Step 5: Solve for x
    x = 3,612,932.31/2,157.99
  6. Step 6: Final answer
    x = 1,674.21

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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.