Home / 5,266-7,903.28-2,669.68

Finding the Fourth Proportional to 5,266, 7,903.28 and 2,669.68

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Solution

The fourth proportional to 5,266, 7,903.28 and 2,669.68 is: 4,006.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,266 : 7,903.28 = 2,669.68 : x
  2. Step 2: Convert to fraction form
    5,266/7,903.28 = 2,669.68/x
  3. Step 3: Cross multiply
    5,266x = 7,903.28 × 2,669.68
  4. Step 4: Simplify right side
    5,266x = 21,099,228.55
  5. Step 5: Solve for x
    x = 21,099,228.55/5,266
  6. Step 6: Final answer
    x = 4,006.69

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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.