Home / 7,419.28-11,128.92-3,035.76

Finding the Fourth Proportional to 7,419.28, 11,128.92 and 3,035.76

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Solution

The fourth proportional to 7,419.28, 11,128.92 and 3,035.76 is: 4,553.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.28 : 11,128.92 = 3,035.76 : x
  2. Step 2: Convert to fraction form
    7,419.28/11,128.92 = 3,035.76/x
  3. Step 3: Cross multiply
    7,419.28x = 11,128.92 × 3,035.76
  4. Step 4: Simplify right side
    7,419.28x = 33,784,730.18
  5. Step 5: Solve for x
    x = 33,784,730.18/7,419.28
  6. Step 6: Final answer
    x = 4,553.64

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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.