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Finding the Fourth Proportional to 5,745.27, 7,929.34 and 3,508.45

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Solution

The fourth proportional to 5,745.27, 7,929.34 and 3,508.45 is: 4,842.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745.27 : 7,929.34 = 3,508.45 : x
  2. Step 2: Convert to fraction form
    5,745.27/7,929.34 = 3,508.45/x
  3. Step 3: Cross multiply
    5,745.27x = 7,929.34 × 3,508.45
  4. Step 4: Simplify right side
    5,745.27x = 27,819,692.92
  5. Step 5: Solve for x
    x = 27,819,692.92/5,745.27
  6. Step 6: Final answer
    x = 4,842.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.