Home / 5,511-8,263.45-2,871.91

Finding the Fourth Proportional to 5,511, 8,263.45 and 2,871.91

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Solution

The fourth proportional to 5,511, 8,263.45 and 2,871.91 is: 4,306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511 : 8,263.45 = 2,871.91 : x
  2. Step 2: Convert to fraction form
    5,511/8,263.45 = 2,871.91/x
  3. Step 3: Cross multiply
    5,511x = 8,263.45 × 2,871.91
  4. Step 4: Simplify right side
    5,511x = 23,731,884.69
  5. Step 5: Solve for x
    x = 23,731,884.69/5,511
  6. Step 6: Final answer
    x = 4,306.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.