Home / 5,209.36-7,814.08-2,131.36

Finding the Fourth Proportional to 5,209.36, 7,814.08 and 2,131.36

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Solution

The fourth proportional to 5,209.36, 7,814.08 and 2,131.36 is: 3,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.36 : 7,814.08 = 2,131.36 : x
  2. Step 2: Convert to fraction form
    5,209.36/7,814.08 = 2,131.36/x
  3. Step 3: Cross multiply
    5,209.36x = 7,814.08 × 2,131.36
  4. Step 4: Simplify right side
    5,209.36x = 16,654,606.89
  5. Step 5: Solve for x
    x = 16,654,606.89/5,209.36
  6. Step 6: Final answer
    x = 3,197.05

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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.