Home / 7,110.40-10,651.20-4,921.60

Finding the Fourth Proportional to 7,110.40, 10,651.20 and 4,921.60

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Solution

The fourth proportional to 7,110.40, 10,651.20 and 4,921.60 is: 7,372.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.40 : 10,651.20 = 4,921.60 : x
  2. Step 2: Convert to fraction form
    7,110.40/10,651.20 = 4,921.60/x
  3. Step 3: Cross multiply
    7,110.40x = 10,651.20 × 4,921.60
  4. Step 4: Simplify right side
    7,110.40x = 52,420,945.92
  5. Step 5: Solve for x
    x = 52,420,945.92/7,110.40
  6. Step 6: Final answer
    x = 7,372.43

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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.