Home / 2,871.34-3,962.25-1,692.16

Finding the Fourth Proportional to 2,871.34, 3,962.25 and 1,692.16

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Solution

The fourth proportional to 2,871.34, 3,962.25 and 1,692.16 is: 2,335.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.34 : 3,962.25 = 1,692.16 : x
  2. Step 2: Convert to fraction form
    2,871.34/3,962.25 = 1,692.16/x
  3. Step 3: Cross multiply
    2,871.34x = 3,962.25 × 1,692.16
  4. Step 4: Simplify right side
    2,871.34x = 6,704,760.96
  5. Step 5: Solve for x
    x = 6,704,760.96/2,871.34
  6. Step 6: Final answer
    x = 2,335.06

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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.