Home / 3,400.76-4,692.97-1,908.65

Finding the Fourth Proportional to 3,400.76, 4,692.97 and 1,908.65

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Solution

The fourth proportional to 3,400.76, 4,692.97 and 1,908.65 is: 2,633.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.76 : 4,692.97 = 1,908.65 : x
  2. Step 2: Convert to fraction form
    3,400.76/4,692.97 = 1,908.65/x
  3. Step 3: Cross multiply
    3,400.76x = 4,692.97 × 1,908.65
  4. Step 4: Simplify right side
    3,400.76x = 8,957,237.19
  5. Step 5: Solve for x
    x = 8,957,237.19/3,400.76
  6. Step 6: Final answer
    x = 2,633.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.