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Finding the Fourth Proportional to 5,636.88, 8,460.81 and 3,449.88

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Solution

The fourth proportional to 5,636.88, 8,460.81 and 3,449.88 is: 5,178.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.88 : 8,460.81 = 3,449.88 : x
  2. Step 2: Convert to fraction form
    5,636.88/8,460.81 = 3,449.88/x
  3. Step 3: Cross multiply
    5,636.88x = 8,460.81 × 3,449.88
  4. Step 4: Simplify right side
    5,636.88x = 29,188,779.20
  5. Step 5: Solve for x
    x = 29,188,779.20/5,636.88
  6. Step 6: Final answer
    x = 5,178.18

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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.