Home / 7,420.28-11,130.39-3,037.73

Finding the Fourth Proportional to 7,420.28, 11,130.39 and 3,037.73

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Solution

The fourth proportional to 7,420.28, 11,130.39 and 3,037.73 is: 4,556.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.28 : 11,130.39 = 3,037.73 : x
  2. Step 2: Convert to fraction form
    7,420.28/11,130.39 = 3,037.73/x
  3. Step 3: Cross multiply
    7,420.28x = 11,130.39 × 3,037.73
  4. Step 4: Simplify right side
    7,420.28x = 33,811,119.61
  5. Step 5: Solve for x
    x = 33,811,119.61/7,420.28
  6. Step 6: Final answer
    x = 4,556.58

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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.