Home / 3,727.98-5,145.57-2,156.99

Finding the Fourth Proportional to 3,727.98, 5,145.57 and 2,156.99

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Solution

The fourth proportional to 3,727.98, 5,145.57 and 2,156.99 is: 2,977.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.98 : 5,145.57 = 2,156.99 : x
  2. Step 2: Convert to fraction form
    3,727.98/5,145.57 = 2,156.99/x
  3. Step 3: Cross multiply
    3,727.98x = 5,145.57 × 2,156.99
  4. Step 4: Simplify right side
    3,727.98x = 11,098,917.31
  5. Step 5: Solve for x
    x = 11,098,917.31/3,727.98
  6. Step 6: Final answer
    x = 2,977.19

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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.