Home / 1,692.09-2,334.94-946.15

Finding the Fourth Proportional to 1,692.09, 2,334.94 and 946.15

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Solution

The fourth proportional to 1,692.09, 2,334.94 and 946.15 is: 1,305.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.09 : 2,334.94 = 946.15 : x
  2. Step 2: Convert to fraction form
    1,692.09/2,334.94 = 946.15/x
  3. Step 3: Cross multiply
    1,692.09x = 2,334.94 × 946.15
  4. Step 4: Simplify right side
    1,692.09x = 2,209,198.75
  5. Step 5: Solve for x
    x = 2,209,198.75/1,692.09
  6. Step 6: Final answer
    x = 1,305.61

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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.