Home / 2,692.38-3,717.32-1,984.31

Finding the Fourth Proportional to 2,692.38, 3,717.32 and 1,984.31

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Solution

The fourth proportional to 2,692.38, 3,717.32 and 1,984.31 is: 2,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.38 : 3,717.32 = 1,984.31 : x
  2. Step 2: Convert to fraction form
    2,692.38/3,717.32 = 1,984.31/x
  3. Step 3: Cross multiply
    2,692.38x = 3,717.32 × 1,984.31
  4. Step 4: Simplify right side
    2,692.38x = 7,376,286.74
  5. Step 5: Solve for x
    x = 7,376,286.74/2,692.38
  6. Step 6: Final answer
    x = 2,739.69

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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.