Home / 2,808.18-4,215.92-2,159.37

Finding the Fourth Proportional to 2,808.18, 4,215.92 and 2,159.37

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Solution

The fourth proportional to 2,808.18, 4,215.92 and 2,159.37 is: 3,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.18 : 4,215.92 = 2,159.37 : x
  2. Step 2: Convert to fraction form
    2,808.18/4,215.92 = 2,159.37/x
  3. Step 3: Cross multiply
    2,808.18x = 4,215.92 × 2,159.37
  4. Step 4: Simplify right side
    2,808.18x = 9,103,720.37
  5. Step 5: Solve for x
    x = 9,103,720.37/2,808.18
  6. Step 6: Final answer
    x = 3,241.86

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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.