Home / 5,209.11-7,808.54-2,087.24

Finding the Fourth Proportional to 5,209.11, 7,808.54 and 2,087.24

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Solution

The fourth proportional to 5,209.11, 7,808.54 and 2,087.24 is: 3,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.11 : 7,808.54 = 2,087.24 : x
  2. Step 2: Convert to fraction form
    5,209.11/7,808.54 = 2,087.24/x
  3. Step 3: Cross multiply
    5,209.11x = 7,808.54 × 2,087.24
  4. Step 4: Simplify right side
    5,209.11x = 16,298,247.55
  5. Step 5: Solve for x
    x = 16,298,247.55/5,209.11
  6. Step 6: Final answer
    x = 3,128.80

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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.