Home / 5,349.90-8,022.30-3,129.37

Finding the Fourth Proportional to 5,349.90, 8,022.30 and 3,129.37

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Solution

The fourth proportional to 5,349.90, 8,022.30 and 3,129.37 is: 4,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.90 : 8,022.30 = 3,129.37 : x
  2. Step 2: Convert to fraction form
    5,349.90/8,022.30 = 3,129.37/x
  3. Step 3: Cross multiply
    5,349.90x = 8,022.30 × 3,129.37
  4. Step 4: Simplify right side
    5,349.90x = 25,104,744.95
  5. Step 5: Solve for x
    x = 25,104,744.95/5,349.90
  6. Step 6: Final answer
    x = 4,692.56

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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.