Home / 2,160.18-3,232.20-1,809.80

Finding the Fourth Proportional to 2,160.18, 3,232.20 and 1,809.80

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Solution

The fourth proportional to 2,160.18, 3,232.20 and 1,809.80 is: 2,707.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.18 : 3,232.20 = 1,809.80 : x
  2. Step 2: Convert to fraction form
    2,160.18/3,232.20 = 1,809.80/x
  3. Step 3: Cross multiply
    2,160.18x = 3,232.20 × 1,809.80
  4. Step 4: Simplify right side
    2,160.18x = 5,849,635.56
  5. Step 5: Solve for x
    x = 5,849,635.56/2,160.18
  6. Step 6: Final answer
    x = 2,707.94

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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.