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Finding the Fourth Proportional to 8,102.79, 12,154.89 and 2,259.39

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Solution

The fourth proportional to 8,102.79, 12,154.89 and 2,259.39 is: 3,389.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.79 : 12,154.89 = 2,259.39 : x
  2. Step 2: Convert to fraction form
    8,102.79/12,154.89 = 2,259.39/x
  3. Step 3: Cross multiply
    8,102.79x = 12,154.89 × 2,259.39
  4. Step 4: Simplify right side
    8,102.79x = 27,462,636.92
  5. Step 5: Solve for x
    x = 27,462,636.92/8,102.79
  6. Step 6: Final answer
    x = 3,389.28

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1.5x scale

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.