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Finding the Fourth Proportional to 8,684.40, 13,028.16 and 2,841.12

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Solution

The fourth proportional to 8,684.40, 13,028.16 and 2,841.12 is: 4,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.40 : 13,028.16 = 2,841.12 : x
  2. Step 2: Convert to fraction form
    8,684.40/13,028.16 = 2,841.12/x
  3. Step 3: Cross multiply
    8,684.40x = 13,028.16 × 2,841.12
  4. Step 4: Simplify right side
    8,684.40x = 37,014,565.94
  5. Step 5: Solve for x
    x = 37,014,565.94/8,684.40
  6. Step 6: Final answer
    x = 4,262.19

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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.