Home / 3,129.63-4,692.61-1,374.56

Finding the Fourth Proportional to 3,129.63, 4,692.61 and 1,374.56

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Solution

The fourth proportional to 3,129.63, 4,692.61 and 1,374.56 is: 2,061.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.63 : 4,692.61 = 1,374.56 : x
  2. Step 2: Convert to fraction form
    3,129.63/4,692.61 = 1,374.56/x
  3. Step 3: Cross multiply
    3,129.63x = 4,692.61 × 1,374.56
  4. Step 4: Simplify right side
    3,129.63x = 6,450,274.00
  5. Step 5: Solve for x
    x = 6,450,274.00/3,129.63
  6. Step 6: Final answer
    x = 2,061.03

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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.