Home / 5,028.30-7,538.81-3,380.76

Finding the Fourth Proportional to 5,028.30, 7,538.81 and 3,380.76

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Solution

The fourth proportional to 5,028.30, 7,538.81 and 3,380.76 is: 5,068.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,028.30 : 7,538.81 = 3,380.76 : x
  2. Step 2: Convert to fraction form
    5,028.30/7,538.81 = 3,380.76/x
  3. Step 3: Cross multiply
    5,028.30x = 7,538.81 × 3,380.76
  4. Step 4: Simplify right side
    5,028.30x = 25,486,890.39
  5. Step 5: Solve for x
    x = 25,486,890.39/5,028.30
  6. Step 6: Final answer
    x = 5,068.69

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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.