Home / 3,130.82-4,692.30-2,739.89

Finding the Fourth Proportional to 3,130.82, 4,692.30 and 2,739.89

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Solution

The fourth proportional to 3,130.82, 4,692.30 and 2,739.89 is: 4,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.82 : 4,692.30 = 2,739.89 : x
  2. Step 2: Convert to fraction form
    3,130.82/4,692.30 = 2,739.89/x
  3. Step 3: Cross multiply
    3,130.82x = 4,692.30 × 2,739.89
  4. Step 4: Simplify right side
    3,130.82x = 12,856,385.85
  5. Step 5: Solve for x
    x = 12,856,385.85/3,130.82
  6. Step 6: Final answer
    x = 4,106.40

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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.