Home / 7,286.60-10,931.70-3,124.64

Finding the Fourth Proportional to 7,286.60, 10,931.70 and 3,124.64

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Solution

The fourth proportional to 7,286.60, 10,931.70 and 3,124.64 is: 4,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,286.60 : 10,931.70 = 3,124.64 : x
  2. Step 2: Convert to fraction form
    7,286.60/10,931.70 = 3,124.64/x
  3. Step 3: Cross multiply
    7,286.60x = 10,931.70 × 3,124.64
  4. Step 4: Simplify right side
    7,286.60x = 34,157,627.09
  5. Step 5: Solve for x
    x = 34,157,627.09/7,286.60
  6. Step 6: Final answer
    x = 4,687.73

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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.