Home / 5,712.60-8,577.70-3,120.60

Finding the Fourth Proportional to 5,712.60, 8,577.70 and 3,120.60

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Solution

The fourth proportional to 5,712.60, 8,577.70 and 3,120.60 is: 4,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,712.60 : 8,577.70 = 3,120.60 : x
  2. Step 2: Convert to fraction form
    5,712.60/8,577.70 = 3,120.60/x
  3. Step 3: Cross multiply
    5,712.60x = 8,577.70 × 3,120.60
  4. Step 4: Simplify right side
    5,712.60x = 26,767,570.62
  5. Step 5: Solve for x
    x = 26,767,570.62/5,712.60
  6. Step 6: Final answer
    x = 4,685.71

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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.