Home / 3,320.87-4,981.28-1,241.40

Finding the Fourth Proportional to 3,320.87, 4,981.28 and 1,241.40

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Solution

The fourth proportional to 3,320.87, 4,981.28 and 1,241.40 is: 1,862.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.87 : 4,981.28 = 1,241.40 : x
  2. Step 2: Convert to fraction form
    3,320.87/4,981.28 = 1,241.40/x
  3. Step 3: Cross multiply
    3,320.87x = 4,981.28 × 1,241.40
  4. Step 4: Simplify right side
    3,320.87x = 6,183,760.98
  5. Step 5: Solve for x
    x = 6,183,760.98/3,320.87
  6. Step 6: Final answer
    x = 1,862.09

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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.