Home / 3,371.90-5,057.78-1,521.99

Finding the Fourth Proportional to 3,371.90, 5,057.78 and 1,521.99

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Solution

The fourth proportional to 3,371.90, 5,057.78 and 1,521.99 is: 2,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,371.90 : 5,057.78 = 1,521.99 : x
  2. Step 2: Convert to fraction form
    3,371.90/5,057.78 = 1,521.99/x
  3. Step 3: Cross multiply
    3,371.90x = 5,057.78 × 1,521.99
  4. Step 4: Simplify right side
    3,371.90x = 7,697,882.97
  5. Step 5: Solve for x
    x = 7,697,882.97/3,371.90
  6. Step 6: Final answer
    x = 2,282.95

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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.