Home / 3,130.27-4,692.13-1,255.43

Finding the Fourth Proportional to 3,130.27, 4,692.13 and 1,255.43

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Solution

The fourth proportional to 3,130.27, 4,692.13 and 1,255.43 is: 1,881.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.27 : 4,692.13 = 1,255.43 : x
  2. Step 2: Convert to fraction form
    3,130.27/4,692.13 = 1,255.43/x
  3. Step 3: Cross multiply
    3,130.27x = 4,692.13 × 1,255.43
  4. Step 4: Simplify right side
    3,130.27x = 5,890,640.77
  5. Step 5: Solve for x
    x = 5,890,640.77/3,130.27
  6. Step 6: Final answer
    x = 1,881.83

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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.