Home / 5,367.20-7,406.51-3,129.77

Finding the Fourth Proportional to 5,367.20, 7,406.51 and 3,129.77

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Solution

The fourth proportional to 5,367.20, 7,406.51 and 3,129.77 is: 4,318.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,367.20 : 7,406.51 = 3,129.77 : x
  2. Step 2: Convert to fraction form
    5,367.20/7,406.51 = 3,129.77/x
  3. Step 3: Cross multiply
    5,367.20x = 7,406.51 × 3,129.77
  4. Step 4: Simplify right side
    5,367.20x = 23,180,675.67
  5. Step 5: Solve for x
    x = 23,180,675.67/5,367.20
  6. Step 6: Final answer
    x = 4,318.96

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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.