Home / 5,128.59-7,692.53-2,930.43

Finding the Fourth Proportional to 5,128.59, 7,692.53 and 2,930.43

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Solution

The fourth proportional to 5,128.59, 7,692.53 and 2,930.43 is: 4,395.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128.59 : 7,692.53 = 2,930.43 : x
  2. Step 2: Convert to fraction form
    5,128.59/7,692.53 = 2,930.43/x
  3. Step 3: Cross multiply
    5,128.59x = 7,692.53 × 2,930.43
  4. Step 4: Simplify right side
    5,128.59x = 22,542,406.04
  5. Step 5: Solve for x
    x = 22,542,406.04/5,128.59
  6. Step 6: Final answer
    x = 4,395.44

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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.