Home / 3,825.20-5,277.48-2,428.76

Finding the Fourth Proportional to 3,825.20, 5,277.48 and 2,428.76

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Solution

The fourth proportional to 3,825.20, 5,277.48 and 2,428.76 is: 3,350.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.20 : 5,277.48 = 2,428.76 : x
  2. Step 2: Convert to fraction form
    3,825.20/5,277.48 = 2,428.76/x
  3. Step 3: Cross multiply
    3,825.20x = 5,277.48 × 2,428.76
  4. Step 4: Simplify right side
    3,825.20x = 12,817,732.32
  5. Step 5: Solve for x
    x = 12,817,732.32/3,825.20
  6. Step 6: Final answer
    x = 3,350.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.