Home / 2,871.93-3,962.79-1,692.84

Finding the Fourth Proportional to 2,871.93, 3,962.79 and 1,692.84

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Solution

The fourth proportional to 2,871.93, 3,962.79 and 1,692.84 is: 2,335.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.93 : 3,962.79 = 1,692.84 : x
  2. Step 2: Convert to fraction form
    2,871.93/3,962.79 = 1,692.84/x
  3. Step 3: Cross multiply
    2,871.93x = 3,962.79 × 1,692.84
  4. Step 4: Simplify right side
    2,871.93x = 6,708,369.42
  5. Step 5: Solve for x
    x = 6,708,369.42/2,871.93
  6. Step 6: Final answer
    x = 2,335.84

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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.