Home / 5,446.80-8,159.40-3,135.60

Finding the Fourth Proportional to 5,446.80, 8,159.40 and 3,135.60

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Solution

The fourth proportional to 5,446.80, 8,159.40 and 3,135.60 is: 4,697.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,446.80 : 8,159.40 = 3,135.60 : x
  2. Step 2: Convert to fraction form
    5,446.80/8,159.40 = 3,135.60/x
  3. Step 3: Cross multiply
    5,446.80x = 8,159.40 × 3,135.60
  4. Step 4: Simplify right side
    5,446.80x = 25,584,614.64
  5. Step 5: Solve for x
    x = 25,584,614.64/5,446.80
  6. Step 6: Final answer
    x = 4,697.18

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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.