Home / 5,190.24-7,780.26-2,069.30

Finding the Fourth Proportional to 5,190.24, 7,780.26 and 2,069.30

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Solution

The fourth proportional to 5,190.24, 7,780.26 and 2,069.30 is: 3,101.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.24 : 7,780.26 = 2,069.30 : x
  2. Step 2: Convert to fraction form
    5,190.24/7,780.26 = 2,069.30/x
  3. Step 3: Cross multiply
    5,190.24x = 7,780.26 × 2,069.30
  4. Step 4: Simplify right side
    5,190.24x = 16,099,692.02
  5. Step 5: Solve for x
    x = 16,099,692.02/5,190.24
  6. Step 6: Final answer
    x = 3,101.92

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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.