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Finding the Fourth Proportional to 5,664.80, 8,486.40 and 3,353.60

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Solution

The fourth proportional to 5,664.80, 8,486.40 and 3,353.60 is: 5,024.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,664.80 : 8,486.40 = 3,353.60 : x
  2. Step 2: Convert to fraction form
    5,664.80/8,486.40 = 3,353.60/x
  3. Step 3: Cross multiply
    5,664.80x = 8,486.40 × 3,353.60
  4. Step 4: Simplify right side
    5,664.80x = 28,459,991.04
  5. Step 5: Solve for x
    x = 28,459,991.04/5,664.80
  6. Step 6: Final answer
    x = 5,024.01

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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.