Home / 2,808.08-4,209.82-2,113.40

Finding the Fourth Proportional to 2,808.08, 4,209.82 and 2,113.40

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Solution

The fourth proportional to 2,808.08, 4,209.82 and 2,113.40 is: 3,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.08 : 4,209.82 = 2,113.40 : x
  2. Step 2: Convert to fraction form
    2,808.08/4,209.82 = 2,113.40/x
  3. Step 3: Cross multiply
    2,808.08x = 4,209.82 × 2,113.40
  4. Step 4: Simplify right side
    2,808.08x = 8,897,033.59
  5. Step 5: Solve for x
    x = 8,897,033.59/2,808.08
  6. Step 6: Final answer
    x = 3,168.37

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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.