Home / 7,274.28-10,912.12-2,890.76

Finding the Fourth Proportional to 7,274.28, 10,912.12 and 2,890.76

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Solution

The fourth proportional to 7,274.28, 10,912.12 and 2,890.76 is: 4,336.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.28 : 10,912.12 = 2,890.76 : x
  2. Step 2: Convert to fraction form
    7,274.28/10,912.12 = 2,890.76/x
  3. Step 3: Cross multiply
    7,274.28x = 10,912.12 × 2,890.76
  4. Step 4: Simplify right side
    7,274.28x = 31,544,265.45
  5. Step 5: Solve for x
    x = 31,544,265.45/7,274.28
  6. Step 6: Final answer
    x = 4,336.41

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1.5x scale

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.