Home / 5,811.60-8,019.61-3,158.96

Finding the Fourth Proportional to 5,811.60, 8,019.61 and 3,158.96

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Solution

The fourth proportional to 5,811.60, 8,019.61 and 3,158.96 is: 4,359.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.60 : 8,019.61 = 3,158.96 : x
  2. Step 2: Convert to fraction form
    5,811.60/8,019.61 = 3,158.96/x
  3. Step 3: Cross multiply
    5,811.60x = 8,019.61 × 3,158.96
  4. Step 4: Simplify right side
    5,811.60x = 25,333,579.21
  5. Step 5: Solve for x
    x = 25,333,579.21/5,811.60
  6. Step 6: Final answer
    x = 4,359.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.