Home / 2,871.96-3,964.88-1,753.16

Finding the Fourth Proportional to 2,871.96, 3,964.88 and 1,753.16

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Solution

The fourth proportional to 2,871.96, 3,964.88 and 1,753.16 is: 2,420.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.96 : 3,964.88 = 1,753.16 : x
  2. Step 2: Convert to fraction form
    2,871.96/3,964.88 = 1,753.16/x
  3. Step 3: Cross multiply
    2,871.96x = 3,964.88 × 1,753.16
  4. Step 4: Simplify right side
    2,871.96x = 6,951,069.02
  5. Step 5: Solve for x
    x = 6,951,069.02/2,871.96
  6. Step 6: Final answer
    x = 2,420.32

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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.