Home / 3,428.62-5,143.01-2,726.31

Finding the Fourth Proportional to 3,428.62, 5,143.01 and 2,726.31

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Solution

The fourth proportional to 3,428.62, 5,143.01 and 2,726.31 is: 4,089.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.62 : 5,143.01 = 2,726.31 : x
  2. Step 2: Convert to fraction form
    3,428.62/5,143.01 = 2,726.31/x
  3. Step 3: Cross multiply
    3,428.62x = 5,143.01 × 2,726.31
  4. Step 4: Simplify right side
    3,428.62x = 14,021,439.59
  5. Step 5: Solve for x
    x = 14,021,439.59/3,428.62
  6. Step 6: Final answer
    x = 4,089.53

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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.