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Finding the Fourth Proportional to 5,267.15, 7,268.05 and 2,909.15

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Solution

The fourth proportional to 5,267.15, 7,268.05 and 2,909.15 is: 4,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,267.15 : 7,268.05 = 2,909.15 : x
  2. Step 2: Convert to fraction form
    5,267.15/7,268.05 = 2,909.15/x
  3. Step 3: Cross multiply
    5,267.15x = 7,268.05 × 2,909.15
  4. Step 4: Simplify right side
    5,267.15x = 21,143,869.46
  5. Step 5: Solve for x
    x = 21,143,869.46/5,267.15
  6. Step 6: Final answer
    x = 4,014.29

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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.