Home / 5,125.11-7,692.48-2,661.68

Finding the Fourth Proportional to 5,125.11, 7,692.48 and 2,661.68

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Solution

The fourth proportional to 5,125.11, 7,692.48 and 2,661.68 is: 3,995.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.11 : 7,692.48 = 2,661.68 : x
  2. Step 2: Convert to fraction form
    5,125.11/7,692.48 = 2,661.68/x
  3. Step 3: Cross multiply
    5,125.11x = 7,692.48 × 2,661.68
  4. Step 4: Simplify right side
    5,125.11x = 20,474,881.70
  5. Step 5: Solve for x
    x = 20,474,881.70/5,125.11
  6. Step 6: Final answer
    x = 3,995.01

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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.