Home / 5,228.73-7,215.80-2,871.02

Finding the Fourth Proportional to 5,228.73, 7,215.80 and 2,871.02

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Solution

The fourth proportional to 5,228.73, 7,215.80 and 2,871.02 is: 3,962.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.73 : 7,215.80 = 2,871.02 : x
  2. Step 2: Convert to fraction form
    5,228.73/7,215.80 = 2,871.02/x
  3. Step 3: Cross multiply
    5,228.73x = 7,215.80 × 2,871.02
  4. Step 4: Simplify right side
    5,228.73x = 20,716,706.12
  5. Step 5: Solve for x
    x = 20,716,706.12/5,228.73
  6. Step 6: Final answer
    x = 3,962.09

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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.