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Finding the Fourth Proportional to 5,757.36, 8,636.13 and 1,808.49

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Solution

The fourth proportional to 5,757.36, 8,636.13 and 1,808.49 is: 2,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.36 : 8,636.13 = 1,808.49 : x
  2. Step 2: Convert to fraction form
    5,757.36/8,636.13 = 1,808.49/x
  3. Step 3: Cross multiply
    5,757.36x = 8,636.13 × 1,808.49
  4. Step 4: Simplify right side
    5,757.36x = 15,618,354.74
  5. Step 5: Solve for x
    x = 15,618,354.74/5,757.36
  6. Step 6: Final answer
    x = 2,712.76

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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.