Home / 3,129.38-4,692.46-1,048.63

Finding the Fourth Proportional to 3,129.38, 4,692.46 and 1,048.63

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Solution

The fourth proportional to 3,129.38, 4,692.46 and 1,048.63 is: 1,572.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.38 : 4,692.46 = 1,048.63 : x
  2. Step 2: Convert to fraction form
    3,129.38/4,692.46 = 1,048.63/x
  3. Step 3: Cross multiply
    3,129.38x = 4,692.46 × 1,048.63
  4. Step 4: Simplify right side
    3,129.38x = 4,920,654.33
  5. Step 5: Solve for x
    x = 4,920,654.33/3,129.38
  6. Step 6: Final answer
    x = 1,572.41

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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.