Home / 7,125.75-10,692.27-3,178.22

Finding the Fourth Proportional to 7,125.75, 10,692.27 and 3,178.22

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Solution

The fourth proportional to 7,125.75, 10,692.27 and 3,178.22 is: 4,768.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.75 : 10,692.27 = 3,178.22 : x
  2. Step 2: Convert to fraction form
    7,125.75/10,692.27 = 3,178.22/x
  3. Step 3: Cross multiply
    7,125.75x = 10,692.27 × 3,178.22
  4. Step 4: Simplify right side
    7,125.75x = 33,982,332.90
  5. Step 5: Solve for x
    x = 33,982,332.90/7,125.75
  6. Step 6: Final answer
    x = 4,768.95

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1.5x scale

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.